{"id":12193,"date":"2026-09-27T06:09:29","date_gmt":"2026-09-27T06:09:29","guid":{"rendered":"https:\/\/daivings.lv\/?p=12193"},"modified":"2026-09-27T07:47:13","modified_gmt":"2026-09-27T07:47:13","slug":"water-slide-navigation-reels-for-primary-reel-jump-spool-and-cave-line-use-underwater-environment","status":"publish","type":"post","link":"https:\/\/daivings.lv\/en\/udenslideju-navigacijas-spoles-par-primary-reel-jump-spool-un-cave-line-lietosana-zemudens-vide\/","title":{"rendered":"Divers&#039; Navigation Reels - About \u201cPrimary Reel\u201d, \u201cJump Spool\u201d and \u201cCave Line\u201d Use in Underwater Environments"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Contents\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/daivings.lv\/en\/udenslideju-navigacijas-spoles-par-primary-reel-jump-spool-un-cave-line-lietosana-zemudens-vide\/#Padzilinats_celvedis_par_Primary_Reel_Jump_Spool_un_Cave_Line\" >In-depth guide to Primary Reel, Jump Spool and Cave Line<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/daivings.lv\/en\/udenslideju-navigacijas-spoles-par-primary-reel-jump-spool-un-cave-line-lietosana-zemudens-vide\/#Spole_ar_rokturi_Reel_vai_Pirksta_spole_Finger_Spool\" >Reel or Finger Spool<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/daivings.lv\/en\/udenslideju-navigacijas-spoles-par-primary-reel-jump-spool-un-cave-line-lietosana-zemudens-vide\/#Virvju_vadiba_dazadas_nirsanas_vides\" >Rope management in different diving environments<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/daivings.lv\/en\/udenslideju-navigacijas-spoles-par-primary-reel-jump-spool-un-cave-line-lietosana-zemudens-vide\/#Sporta_nirsana_SMB_izlaisana_un_drosibas_pieturas\" >Sport diving, SMB release and safety stops<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/daivings.lv\/en\/udenslideju-navigacijas-spoles-par-primary-reel-jump-spool-un-cave-line-lietosana-zemudens-vide\/#Tehniska_nirsana_dzila_dekompresija_un_glabsanas_maisi_Lift_Bags\" >Technical diving, deep decompression and rescue bags (Lift Bags)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/daivings.lv\/en\/udenslideju-navigacijas-spoles-par-primary-reel-jump-spool-un-cave-line-lietosana-zemudens-vide\/#Alu_un_vraku_nirsana_nepartraukta_linija_lidz_atvertam_udenim\" >Cave and wreck diving, continuous line to open water<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/daivings.lv\/en\/udenslideju-navigacijas-spoles-par-primary-reel-jump-spool-un-cave-line-lietosana-zemudens-vide\/#Virves_un_materiali\" >Ropes and materials<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/daivings.lv\/en\/udenslideju-navigacijas-spoles-par-primary-reel-jump-spool-un-cave-line-lietosana-zemudens-vide\/#Instruktora_praktiskie_ieteikumi\" >Instructor&#039;s practical recommendations<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/daivings.lv\/en\/udenslideju-navigacijas-spoles-par-primary-reel-jump-spool-un-cave-line-lietosana-zemudens-vide\/#Baltijas_un_alu_udenslideju_ieteikumi\" >Recommendations for Baltic and cave divers<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Padzilinats_celvedis_par_Primary_Reel_Jump_Spool_un_Cave_Line\"><\/span>In-depth guide to Primary Reel, Jump Spool and Cave Line<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Many divers in their <strong>in experience<\/strong> There comes a point when simply swimming along the shore or the quarry wall is no longer enough. It is time to do the first decompression buoys (SMB) <strong>release<\/strong> from the depths, anchoring the base coil at the cave entrance or making a jump (<em>jump<\/em>) to a side passage in a cave system or shipwreck. At this point, the classic question arises: <strong>what to choose \u2014 mechanical reel with handle (<em>reel<\/em>) or simple finger coil (<em>finger spool<\/em>)?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">There is no one-size-fits-all answer. The choice depends on the environment, the task, and the configuration philosophy. Below are technical specifications, practical considerations, and recommendations for proper rope management and equipment selection for sport, technical, and cave\/wreck diving.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Spole_ar_rokturi_Reel_vai_Pirksta_spole_Finger_Spool\"><\/span>Spool with handle (<em>Reel<\/em>) <strong>or<\/strong> Finger coil (<em>Finger Spool<\/em>)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The main difference between these two tools lies in their mechanical design and fault tolerance:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Finger Spool:<\/strong> A monolithic cylinder with no moving parts, made of machined Delrin or aluminum. The rope is wound and unwound manually, controlled with your fingers through the central hole and secured with a double-sided carabiner (<em>double-ender bolt snap<\/em>).\n<ul class=\"wp-block-list\">\n<li><em>Pros:<\/em> Impossible to damage mechanically, no gears or axles to jam; minimal size for pocket or D-ring use.<\/li>\n\n\n\n<li><em>Cons:<\/em> Slow and awkward rope winding with thick drysuit gloves in cold water; limited rope length (usually 15\u201345 meters).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>Primary \/ Exploration Reel (Mechanical reel with handle):<\/strong> A body with a handle (usually a \u201csidewinder\u201d or \u201ctop handle\u201d style), a rotating drum, a locking screw, and a winding crank.\n<ul class=\"wp-block-list\">\n<li><em>Pros:<\/em> Fast winding of large amounts of rope (60\u2013250+ meters); comfortable grip even with 3-finger neoprene or dry gloves; integrated braking mechanism.<\/li>\n\n\n\n<li><em>Cons:<\/em> Risk of mechanical failure - the rope can slip behind the drum and get stuck around the axle (<em>rat&#039;s nest<\/em>), the fixing screw may become lost or become jammed if overtightened.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"108\" class=\"wp-image-12194\" style=\"width: 150px;\" src=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Spool-30.png\" alt=\"\" srcset=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Spool-30.png?v=1790488560 300w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Spool-30-18x12.png?v=1790488560 18w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Spool-30-230x165.png?v=1790488560 230w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/td><td><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"131\" class=\"wp-image-12196\" style=\"width: 150px;\" src=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Spool-50-Complete-33m.png\" alt=\"\" srcset=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Spool-50-Complete-33m.png?v=1790488564 900w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Spool-50-Complete-33m-300x262.png?v=1790488564 300w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Spool-50-Complete-33m-768x670.png?v=1790488564 768w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Spool-50-Complete-33m-14x12.png?v=1790488564 14w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Spool-50-Complete-33m-230x201.png?v=1790488564 230w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Spool-50-Complete-33m-350x305.png?v=1790488564 350w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Spool-50-Complete-33m-480x419.png?v=1790488564 480w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/td><\/tr><tr><td><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"106\" class=\"wp-image-12195\" style=\"width: 150px;\" src=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Finger_Spool__WEB_.jpg\" alt=\"\" srcset=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Finger_Spool__WEB_.jpg?v=1790488562 2000w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Finger_Spool__WEB_-300x212.jpg?v=1790488562 300w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Finger_Spool__WEB_-1024x724.jpg?v=1790488562 1024w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Finger_Spool__WEB_-768x543.jpg?v=1790488562 768w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Finger_Spool__WEB_-1536x1086.jpg?v=1790488562 1536w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Finger_Spool__WEB_-18x12.jpg?v=1790488562 18w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Finger_Spool__WEB_-1000x707.jpg?v=1790488562 1000w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Finger_Spool__WEB_-230x163.jpg?v=1790488562 230w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Finger_Spool__WEB_-350x247.jpg?v=1790488562 350w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Finger_Spool__WEB_-480x339.jpg?v=1790488562 480w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/td><td><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"180\" class=\"wp-image-12197\" style=\"width: 150px;\" src=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Coldwater-Spool-30-m.png\" alt=\"\" srcset=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Coldwater-Spool-30-m.png?v=1790488565 300w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Coldwater-Spool-30-m-251x300.png?v=1790488565 251w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Coldwater-Spool-30-m-10x12.png?v=1790488565 10w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Coldwater-Spool-30-m-230x275.png?v=1790488565 230w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Virvju_vadiba_dazadas_nirsanas_vides\"><\/span>Rope management in different diving environments<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Sporta_nirsana_SMB_izlaisana_un_drosibas_pieturas\"><\/span>Sport diving, SMB release and safety stops<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In sport diving from a boat buoy <strong>release<\/strong> is critical for transmitting the signal to the master. In standard profiles, the safety stop occurs at a depth of 5 meters.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Recommended tool:<\/strong> Little finger coil (<em>Finger Spool<\/em>) with 15\u201330 meters of rope.<\/li>\n\n\n\n<li><strong>Why:<\/strong> There is no need for a complicated mechanism. The finger reel has no moving parts that could get caught when the buoy quickly pulls the rope to the surface. If the rope does get tangled, the reel is simply released - it will not pull the diver into an uncontrolled ascent, unlike a heavy mechanical reel, whose handle can get caught on equipment.<\/li>\n\n\n\n<li><strong>Practical note:<\/strong> Never attach the coil tightly to your BCD before inflating the SMB. Only hold it in your fingers with a light grip.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tehniska_nirsana_dzila_dekompresija_un_glabsanas_maisi_Lift_Bags\"><\/span>Technical diving, deep decompression and rescue bags (<em>Lift Bags<\/em>)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">There is a strict principle in technical diving: only take with you underwater what you actually plan to use or what is needed for emergency procedures.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Decompression marking from depth:<\/strong> When performing deep Trimix or decompression dives (open-circuit or CCR), the team often needs to perform SMB <strong>release<\/strong> from 21-30 meters or deeper, so that surface support can notice the direction of the team&#039;s drift in time. In such a scenario, a 60-90 meter reel is a must.<\/li>\n\n\n\n<li><strong>Lifting bags (<em>Lift Bags<\/em>) and search:<\/strong> When moving heavier objects or performing lifting operations, the usual plastic carabiner and fine rope are not suitable. A stainless steel body mechanical tool with #24 or even thicker braided nylon rope is used to hold the load.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" class=\"wp-image-12198\" style=\"width: 150px;\" src=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-m-with-SS-Double-Ender-100-mm-3.png\" alt=\"\" srcset=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-m-with-SS-Double-Ender-100-mm-3.png?v=1790488567 900w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-m-with-SS-Double-Ender-100-mm-3-300x300.png?v=1790488567 300w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-m-with-SS-Double-Ender-100-mm-3-150x150.png?v=1790488567 150w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-m-with-SS-Double-Ender-100-mm-3-768x768.png?v=1790488567 768w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-m-with-SS-Double-Ender-100-mm-3-12x12.png?v=1790488567 12w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-m-with-SS-Double-Ender-100-mm-3-230x230.png?v=1790488567 230w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-m-with-SS-Double-Ender-100-mm-3-350x350.png?v=1790488567 350w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-m-with-SS-Double-Ender-100-mm-3-480x480.png?v=1790488567 480w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/td><td><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" class=\"wp-image-12204\" style=\"width: 150px;\" src=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-meter.png\" alt=\"\" srcset=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-meter.png?v=1790488578 900w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-meter-300x300.png?v=1790488578 300w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-meter-150x150.png?v=1790488578 150w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-meter-768x768.png?v=1790488578 768w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-meter-12x12.png?v=1790488578 12w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-meter-230x230.png?v=1790488578 230w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-meter-350x350.png?v=1790488578 350w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-meter-480x480.png?v=1790488578 480w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/td><\/tr><tr><td><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" class=\"wp-image-12199\" style=\"width: 150px;\" src=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-m-with-SS-Double-Ender-100-mm-2.png\" alt=\"\" srcset=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-m-with-SS-Double-Ender-100-mm-2.png?v=1790488569 900w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-m-with-SS-Double-Ender-100-mm-2-300x300.png?v=1790488569 300w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-m-with-SS-Double-Ender-100-mm-2-150x150.png?v=1790488569 150w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-m-with-SS-Double-Ender-100-mm-2-768x768.png?v=1790488569 768w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-m-with-SS-Double-Ender-100-mm-2-12x12.png?v=1790488569 12w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-m-with-SS-Double-Ender-100-mm-2-230x230.png?v=1790488569 230w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-m-with-SS-Double-Ender-100-mm-2-350x350.png?v=1790488569 350w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-m-with-SS-Double-Ender-100-mm-2-480x480.png?v=1790488569 480w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/td><td><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" class=\"wp-image-12203\" style=\"width: 150px;\" src=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-meter-2.png\" alt=\"\" srcset=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-meter-2.png?v=1790488576 900w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-meter-2-300x300.png?v=1790488576 300w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-meter-2-150x150.png?v=1790488576 150w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-meter-2-768x768.png?v=1790488576 768w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-meter-2-12x12.png?v=1790488576 12w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-meter-2-230x230.png?v=1790488576 230w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-meter-2-350x350.png?v=1790488576 350w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DIR-ZONE-Reel-45-meter-2-480x480.png?v=1790488576 480w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/td><\/tr><tr><td><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" class=\"wp-image-12201\" style=\"width: 150px;\" src=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DirZone-120-m-Delrin-Aluminium-spole-Reel-2.jpg\" alt=\"\" srcset=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DirZone-120-m-Delrin-Aluminium-spole-Reel-2.jpg?v=1790488572 900w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DirZone-120-m-Delrin-Aluminium-spole-Reel-2-300x300.jpg?v=1790488572 300w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DirZone-120-m-Delrin-Aluminium-spole-Reel-2-150x150.jpg?v=1790488572 150w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DirZone-120-m-Delrin-Aluminium-spole-Reel-2-768x768.jpg?v=1790488572 768w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DirZone-120-m-Delrin-Aluminium-spole-Reel-2-12x12.jpg?v=1790488572 12w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DirZone-120-m-Delrin-Aluminium-spole-Reel-2-230x230.jpg?v=1790488572 230w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DirZone-120-m-Delrin-Aluminium-spole-Reel-2-350x350.jpg?v=1790488572 350w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DirZone-120-m-Delrin-Aluminium-spole-Reel-2-480x480.jpg?v=1790488572 480w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/td><td><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" class=\"wp-image-12202\" style=\"width: 150px;\" src=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DirZone-120-m-Delrin-Aluminium-spole-Reel.jpg\" alt=\"\" srcset=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DirZone-120-m-Delrin-Aluminium-spole-Reel.jpg?v=1790488573 900w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DirZone-120-m-Delrin-Aluminium-spole-Reel-300x300.jpg?v=1790488573 300w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DirZone-120-m-Delrin-Aluminium-spole-Reel-150x150.jpg?v=1790488573 150w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DirZone-120-m-Delrin-Aluminium-spole-Reel-768x768.jpg?v=1790488573 768w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DirZone-120-m-Delrin-Aluminium-spole-Reel-12x12.jpg?v=1790488573 12w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DirZone-120-m-Delrin-Aluminium-spole-Reel-230x230.jpg?v=1790488573 230w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DirZone-120-m-Delrin-Aluminium-spole-Reel-350x350.jpg?v=1790488573 350w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/DirZone-120-m-Delrin-Aluminium-spole-Reel-480x480.jpg?v=1790488573 480w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Alu_un_vraku_nirsana_nepartraukta_linija_lidz_atvertam_udenim\"><\/span>Cave and wreck diving, continuous line to open water<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In the passage through caves and internal wreck spaces (<em>penetration<\/em>) the main safety law is <strong>continuous rope guidance to the free surface<\/strong>.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>[Open Water \/ Anchor] \u2502 (Primary Tie-off at entrance) \u25bc [Primary Reel: 60-120 m] \u2500\u2500\u2500 (Secondary Tie-off in cavern area) \u2502 \u25bc [Permanent Cave Line] \u2502 (Gap \/ Branch) \u2502 [Jump Spool: 15-30 m] \u2502 \u25bc [Side Passage \/ Target]\n<\/code><\/pre>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Primary Reel<\/strong>\u2013 Used to connect open water to a permanent water line (<em>main cave line<\/em>). It contains 60 to 120+ meters of rope. First touchdown (<em>primary tie-off<\/em>) is performed in an area with free access to the surface, while the second (<em>secondary tie-off<\/em>) \u2014 right at the entrance to the cave to prevent the rope from rubbing against sharp rocks or metal edges of the wreck.<\/li>\n\n\n\n<li><strong>Jump \/ Gap Spool<\/strong>\u2013 In cave systems, permanent lines are never connected directly at intersections to prevent erroneous navigation (\u201cT-junction\u201d navigation errors). To move from the main line to a side passage, the diver makes <em>jump<\/em> maneuver using a 15\u201330 m finger coil and marking the direction with direction indicators (arrows or personalized cookies \u2014 <em>non-directional cookies<\/em>This intentional gap (<em>gap<\/em>) ensures that no diver accidentally turns into the wrong passage in zero visibility conditions; the exit direction always remains clearly defined and physically connected only when the team is actually in the branch.<\/li>\n\n\n\n<li><strong>Safety Spool<\/strong>\u2013 Each team member must have at least one intact spool (30\u201345 m) with a double carabiner in their pocket, intended solely for emergency situations: searching for a lost line in zero visibility (<em>lost line search<\/em>) or to search for a teammate (<em>lost diver procedure<\/em>).<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Virves_un_materiali\"><\/span>Ropes and materials<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The right choice of materials determines whether the rope will last for years, <strong>or<\/strong> will also disappoint at the most inopportune moment:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>Parameter<\/strong><\/td><td><strong>#24 Braided nylon rope (Braided)<\/strong><\/td><td><strong>#24 Twisted rope (Twisted)<\/strong><\/td><td><strong>Finger coil material: Delrin<\/strong><\/td><td><strong>Finger coil material: Cast plastic<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>Durability<\/strong><\/td><td>~90\u2013100 kg tensile strength<\/td><td>Similar stretch, but unravels more easily<\/td><td>Impact-resistant, monolithic material<\/td><td>Brittle to impacts, low durability<\/td><\/tr><tr><td><strong>Dynamics<\/strong><\/td><td>Minimal torsion, fits well on the drum<\/td><td>Tends to twist in loops when rewinding quickly<\/td><td>Withstands temperature fluctuations and friction<\/td><td>Becomes brittle and cracks in cold water<\/td><\/tr><tr><td><strong>Application<\/strong><\/td><td>For primary coils, cave\/wreck lines<\/td><td>Cheap temporary solution<\/td><td>Standard equipment for technical diving<\/td><td>Not recommended for technical dives<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Carabiners (<em>Bolt-snaps<\/em>)<\/strong>\u2013 Use only marine grade stainless steel (AISI 316). Brass carabiners quickly corrode and warp in salt and cold.<\/li>\n\n\n\n<li><strong>Maintenance<\/strong>\u2013 After each day of diving in salt water, carabiners and mechanical reel axles should be thoroughly rinsed in fresh water. Periodically, the carabiner spring mechanism can be treated with a suitable lubricant, carefully wiping off the excess to prevent sand from sticking to it.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Instruktora_praktiskie_ieteikumi\"><\/span>Instructor&#039;s practical recommendations<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Avoid the \u201cChristmas Tree\u201d Syndrome<\/strong>. Don&#039;t hang a huge research coil from your BCD or fin if you&#039;re going on a typical 15-meter coral reef or quarry dive. Each item should have a specific purpose. A large, unnecessary coil creates additional hydrodynamic drag and a significant risk of snagging.<\/li>\n\n\n\n<li><strong>Distance between drum and frame<\/strong>. When choosing a mechanical reel, check the distance between the rotating drum and the stationary frame. It should be less than the diameter of the rope. If the gap is wider, a loose rope will sooner or later slip into the gap, wrap around the central axis and block the reel when you are at depth.<\/li>\n\n\n\n<li><strong>Finger coil lock<\/strong>. Learn to lock a finger reel with a double-sided carabiner in one step with one hand: the carabiner is passed through the loop of the rope, through the end hole of the reel and clipped back to the taut line. A loosely inserted lock will result in the rope unwinding in the pocket.<\/li>\n\n\n\n<li><strong>Pre-purchase consultation<\/strong>. Before purchasing a technical reel from online stores, consult your instructor. Real water experience with specific brands (Dive Rite, Halcyon, Light Monkey) will help you avoid low-quality imitations that tend to fail under load or in cold water.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Baltijas_un_alu_udenslideju_ieteikumi\"><\/span>Recommendations for Baltic and cave divers<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Maris, Trimix &amp; Cave diver (Riga):<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\u201cFor many years I tried to get by with a cheap cast plastic spool, until in the famous Polish quarries it simply split in half under pressure, hitting the metal structure. I switched to a machined Delrin from Halcyon and a metal sidewinder type primary spool. In cold water with thick gloves, the handle of a mechanical reel has to be massive and without sharp edges, otherwise winding turns into a nightmare.\u201d<\/em><\/p>\n<\/blockquote>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>J\u0101nis, Wreck diving enthusiast (Liep\u0101ja):<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>\u201cIn wrecks in the Baltic Sea, visibility can be lost in a split second when the mud rises. A standard finger reel with 30 meters of line is in my left pocket on every dive. If even a small entry into the hold or buoys have to be made <strong>release<\/strong> &quot;From 25 meters in decompression, there is no time to think about wedging mechanisms. The finger coil just works - there is nothing to break there.&quot;<\/em><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">When choosing between a primary coil and a finger coil, there are basically two factors to consider: <strong>required rope length<\/strong> and <strong>complexity of the operation<\/strong>. <strong>Sports<\/strong> for diving and standard jumps (<em>jump<\/em>) a simple finger coil made of durable material is the most reliable solution. For deep exploration, long distances and primary anchoring at the entrance to a cave or wreck, a quality mechanical coil with a handle is an indispensable tool.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"421\" src=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Diverite-reels-1024x421.png?v=1790494979\" alt=\"\" class=\"wp-image-12212\" srcset=\"https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Diverite-reels-1024x421.png?v=1790494979 1024w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Diverite-reels-300x123.png?v=1790494979 300w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Diverite-reels-768x316.png?v=1790494979 768w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Diverite-reels-18x7.png?v=1790494979 18w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Diverite-reels-1000x411.png?v=1790494979 1000w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Diverite-reels-230x95.png?v=1790494979 230w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Diverite-reels-350x144.png?v=1790494979 350w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Diverite-reels-480x197.png?v=1790494979 480w, https:\/\/daivings.lv\/wp-content\/uploads\/2026\/09\/Diverite-reels.png?v=1790494979 1107w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>1. DiveRite Explorer Reel<\/strong><br><strong><br>Construction and design:<\/strong> This is a classic high-capacity primary reel with a durable aluminum or Delrin frame and a metal handle and bolt snap. The reel has a large side lock screw that prevents accidental line rewinding or unwinding.<br><br><strong>Application:<\/strong> Use as <strong>Primary Reel<\/strong> (main spool) when entering caves or inside a wreck where a long line is required (e.g. 120-240 meters).<br><br><strong>Advantages:<\/strong> Very ergonomic, easy to control with thick drysuit gloves in cold water, and also provides stable line tension control.<\/td><\/tr><tr><td><strong>2. <strong>DiveRite <\/strong>Azimuth Reels<\/strong><br><strong><br>Construction and design:<\/strong> A more compact frame reel with a low profile body and built-in line trap protection between the reel disc and frame. A stainless steel carabiner clip is attached to the side for carrying.<br><br><strong>Application:<\/strong> Used both as <strong>Primary Reel<\/strong> for shorter routes, as well as as a safety\/reserve spool (<strong>Safety Reel<\/strong> or <strong>Navigation Reel<\/strong>) in difficult navigation conditions.<br><br><strong>Advantages:<\/strong> Designed to reduce water resistance and take up less space on the diver&#039;s equipment (in the D-ring), while maintaining excellent line capacity and mechanical reliability.<\/td><\/tr><tr><td><strong>3. <strong>DiveRite <\/strong>Slide Lock 2 Reels<\/strong><br><strong><br>Construction and design:<\/strong> Innovative reel with quick-release slide lock mechanism (Slide Lock System), which allows you to lock or release the reel with one hand movement, without the use of a traditional screw lock. The reel disc has ventilation\/water outlet holes for easier cleaning and weight reduction.<br><br><strong>Application:<\/strong> Ideal for working with DSMBs (marker buoys) for launching from depth, as well as for use as a primary or connecting coil in cave and wreck diving.<br><br><strong>Advantages:<\/strong> Quick and easy one-handed operation, which is especially handy in difficult conditions or in cold water with thick gloves.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">There is no one universal answer, they say <strong><a href=\"https:\/\/daivings.lv\/padi-apmaciba\/\" data-type=\"post\" data-id=\"1971\">PADI MSDT<\/a><\/strong> instructor <strong><a href=\"https:\/\/daivings.lv\/nirsanas-instruktors-padi-msdt-valters-preimanis\/\" data-type=\"post\" data-id=\"6003\">Valters Preimanis<\/a><\/strong>The choice depends on the environment, task, and configuration philosophy. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Learn about immediately available diving reels and buoys \u2013 <a href=\"https:\/\/daivings.lv\/shop\/nirsana-kategorija\/nirsanas-ekipejums\/nirsanas-spoles-bojas\">https:\/\/daivings.lv\/shop\/nirsana-kategorija\/nirsanas-ekipejums\/nirsanas-spoles-bojas<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Padzi\u013cin\u0101ts ce\u013cvedis par Primary Reel, Jump Spool un Cave Line Daudzi \u016bdensl\u012bd\u0113ji sav\u0101 pieredz\u0113 non\u0101k pie br\u012b\u017ea, kad ar vienk\u0101r\u0161u peld\u0113\u0161anu gar krastu vai karjera sienu vairs nepietiek. Pien\u0101k laiks pirmo reizi veikt dekompresijas bojas (SMB) izlai\u0161anu no dzi\u013cuma, noenkurot [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":12205,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-12193","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zemudens-pasaule"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u016adensl\u012bd\u0113ju navig\u0101cijas spoles- par &quot;Primary Reel&quot;, &quot;Jump Spool&quot; un &quot;Cave Line&quot; lieto\u0161ana zem\u016bdens vid\u0113 - Daivings.lv<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/daivings.lv\/en\/water-slide-navigation-reels-for-primary-reel-jump-spool-and-cave-line-use-underwater-environment\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u016adensl\u012bd\u0113ju navig\u0101cijas spoles- par &quot;Primary Reel&quot;, &quot;Jump Spool&quot; un &quot;Cave Line&quot; lieto\u0161ana zem\u016bdens vid\u0113 - Daivings.lv\" \/>\n<meta property=\"og:description\" content=\"Padzi\u013cin\u0101ts ce\u013cvedis par Primary Reel, Jump Spool un Cave Line Daudzi \u016bdensl\u012bd\u0113ji sav\u0101 pieredz\u0113 non\u0101k pie br\u012b\u017ea, kad ar vienk\u0101r\u0161u peld\u0113\u0161anu gar krastu vai karjera sienu vairs nepietiek. 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