Reel Reload Service

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Do you have a new dive reel in your shopping cart or want to send us your reel? Add this service to upgrade your dive reel with one of our popular high-technology lines. We will remove the existing line (if any) from the selected reel on your order and reload the reel using your choice of our vibrant colors for DGX Hi-Viz or DGX Ultra-Viz™ polyester line as well as Dyneema® UHMPE line.

Reel Reload Service

Reel Reload Service
Reel Reload Service Reel Reload Service
  • We will machine strip the existing line from the selected reel on your order.
  • We will machine reload the reel using your choice of any of our high-technology line.
  • We use a line counter to measure the amount of line loaded, but also load a little more to account for inaccuracies.
  • The final price is based on a small fee that depends on the size of the reel body, plus the type and amount of line.
  • When you select the reel body, you will see our advice for the maximum QTY (length in feet) of line that will completely fill the spool, but without "overloading".
  • You may choose a lesser quantity than maximum capacity but we strongly suggest you do not request more as overloading the spool is the most common cause of jams.
  • If you wish any pre-existing line to be returned to you, there is small charge for a cardboard spool to collect the stripped line.

Custom manufactured for Dive Gear Express, both our DGX Hi-Viz and DGX Ultra-Viz lines are round braided polyester with a diameter of 1.8mm and are engineered high-tech products with exceptional strength, abrasion and UV resistance. The only difference is the DGX Ultra-Viz line includes a retroreflective nylon strand impregnated with tiny glass micro-beads (<100 microns) that makes the already vibrant line even brighter. Similar to the way SOLAS tape works, when light shines on the reflective strand the light retroreflects back toward the source of the light, thus further increasing visibility.

Dyneema is very popular in Europe and gaining popularity in the US for marine boating and fishing applications. The prominent characteristic of Dyneema is the exceptional tenacity; it is five times stronger than nylon and polyester although it's abrasion resistance is not as good as polyester (but still very good). Dyneema also has a specific gravity slightly lower than water, so it is slightly buoyant particularly in salt water. Dyneema ropes and cords are known for being a little 'stiff' depending on how tightly they are braided, but this 1.6mm line has been custom braided for diving applications and has a good 'hand'. Regardless, the line has exceptional strength in the water, five times stronger than #36 nylon and thinner than #24 nylon so you will be able to load plenty of extra on the reel.

More Information
Brand DGX
Weight 2.000000

Customer Reviews

Selection, Care and Maintenance for Reels

Common reel applications and their minimum line length requirements: Jump: {50 ft | 15 m}, Sport: {100 ft | 30 m}, Safety: {125 ft | 40 m}, Flag: {150 ft | 50 m}, Tech: {200 ft | 60 m}, Primary: {400 ft | 120 m}, Explorer: {650 ft | 200 m}

Requirements vary slightly but most overhead diving classes require three reels: one large "primary" guideline reel with at least {400 ft | 120 m} of line, plus two smaller "safety" reels each with {125 ft | 40 m} or more of line. Depending on the training agency, mission and instructor, sometimes a larger finger spool is substituted for one of the required safety reels. Cave divers used to carry one or more {50 ft | 15 m} "jump" reels to connect gaps in permanent lines, although today most divers use small finger spools for this application. Divers making long penetrations may use "explorer" reels that contain {650 ft | 200 m} or more.

Open water technical classes require a {200 ft | 60 m} or larger "tech" reel and a surface marking device which may be deployed from below the surface (aka DSMB). Depending on local conditions many instructors also require a backup DSMB plus a backup reel; sometimes a larger finger spool can be substituted for the backup reel.

There are no specific equipment requirements regarding reels for open water sport diving, but prudent divers typically carry a {100 ft | 30 m} or larger reel along with a DSMB which is deployed during ascent or upon arrival at the safety stop. For this application, many divers carry a finger spool instead of a reel, but finger spools are not reels. When drift diving in strong currents, a common practice is to use an inexpensive {150 ft | 50 m} "flag" reel to maintain a continuous line to their surface marking buoy displaying a diver down flag. (Inexpensive can be a desirable feature for flag reels because if the current is stronger than anticipated, the reel may have to be sacrificed.)

Line length specifications on reels are approximate and the diver should confirm actual length before relying on a precise distance measurement.

Traditionally, the line on dive reels is a braided thermoplastic fiber made from polyamide (aka Nylon and PA) or more recently polyester terephthalate (aka Dacron and PET) ; each have their pros and cons. Both are strong, but nylon has significantly more elasticity while polyester has very little stretch. In water, nylon tends to become a little 'soggy' and swell slightly thus losing about 15% of its strength, while polyester retains 100% of its strength remaining 'crisp' and resilient when wet. Polyester has better resistance to abrasion and oil products, plus it is significantly more resistant to degrading from UV exposure. Polyester also noticeably better absorbs and retains the high-visibility color dyes (Orange or Yellow, Which is Better?). Many divers prefer polyester line claiming it deploys 'smoother' from the reel and is noticeably stronger; other divers still prefer nylon claiming its elasticity makes it easier to handle and 'tie off' in guideline applications.

A few dive equipment manufacturers have been experimenting with UHMPE (aka Dyneema®) fiber - Apeks uses it as a leader on their LifeLine spools and Divesoft uses it on their Emergency Spool plus offers it as an option on their High-Capacity Reel. The prominent characteristic of Dyneema is the exceptional tenacity; in water it is five times stronger than the others although its abrasion resistance is similar to nylon (but still very good). Dyneema is also slightly buoyant, particularly in salt water. Some divers describe Dyneema as "slippery" which requires extra consideration when choosing the type of knot to tie. Some divers describe Dyneema as "slippery" which requires extra consideration when choosing the type of knot to tie. We recommend always tying a non-slip Bowline knot regardless of the line material since that knot preserves the line strength.

Trade name
Dry Tenacity (cN/dtext)
28 - 38
7 - 8
6.5 - 8.3
Elongation at break (%)
10 - 16
16 - 27
Specific gravity (g/cm 3)
Melting point (°C)
Abrasion resistance
very good
very good
UV resistance
very good
Salt resistance
Resistance to oil products
Knot strength (%)
35 - 50
55 - 60
60 - 65

The size code numbers that describe the diameters of nylon guideline used in cave diving are from an archaic nomenclature for what is termed "twine" (braided string) and each # code describes an approximate thickness range in fractions of an inch. There does not appear to be an established standard (if you know of one, please tell us); size charts vary depending on the cordage manufacturers who each publish their own version for their products. There are four sizes normally seen on guideline reels: #36 and #24 are most common for nylon with #21 and #18 most common for polyester because it is stronger. The thinner the line the more length that can be fit on a given size reel or conversely the smaller the size of the reel for a given length. About 1/16" or 1.6 mm is approaching the minimum diameter practical for manageable line handling in diving applications.

Thinner < #18 = .060" (~1.6 mm), #21 = .067" (~1.7 mm), #24 = .073" (~1.9 mm), and #36 = .085" (~2.1 mm) > Thicker

Care and Maintenance -- After the dive, as with most dive equipment, at least rinse reels with fresh water following each dive and soaking in fresh water is preferred after diving in saltwater. You should also periodically disassemble the reel, and remove any build up of salt or sediment on its internal parts. We recommend pulling some or all of the line off the spool before each dive, then rewinding it neatly but not too tightly, so as to reduce the possibility of jamming during line deployment. If the line on the reel is new or very dry, especially if it is nylon, we recommend pulling the line off into a bucket of water. This will moisten the line, precluding it from swelling on the reel and further reducing the possibility of jamming or damaging the spool.

Overloaded reels and spools are common and too much line can cause jams during initial deployment. If you are having a problem with jams, check the length of the line and try removing some excess if your reel or finger spool has been overloaded.