#1

Inspect the o-rings periodically and before dives to ensure they are free of dirt and debris.

Debris can prevent the unit from sealing properly, compromising its waterproof seal.

#2

The o-ring under the cap is a custom “diamond o-ring” that doesn’t need any lubricant or silicone grease. All you need to do is keep it clean.

The o-ring by the batteries is a standard o-ring that can be lubricated if needed, but it’s not mandatory.

#3

Do not overtighten the two screws. Tighten only until snug. If the screws cannot be removed with the included mini screwdriver, they are too tight.

Always use the included mini screwdriver. Using a larger screwdriver might lead to accidental damage of the plastic housing.

#4

Rinse your LifeLine with fresh water after exposure to salt water or dirty environments. Do not use any chemical cleaners or solvents.

If the cap stayed closed and the inside was not exposed to the elements, rinsing the exterior of the unit will be sufficient.

#5

When storing the unit, store it with the dive cap open.

#6

Applying a small amount of thread sealant to the screws can help prolong the life of the unit.