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Servicing and Maintenance

Is your Regulator feeling a little sluggish? Is it time to get it serviced? Trust us to take good care of it for you.

Our Certified Technicians ensure dive equipment is kept in as safe a condition as possible. St. Andrew’s Divers Cove has staff who are qualified to service most items of diving equipment. We always do our best to assist divers who may have problems with their equipment while on holiday in Gozo.

As we specialise in Apeks we are therefore fully geared to sell and service all parts of Apeks regulators even at short notice.

In the quieter Winter months we service our own hire department equipment, equipment of some of the other local dive centres and the private equipment of local divers. Each of our 220 tanks go through a visual test, a hydrostatic test, they are then spray painted and prepared for the next season. All BCDs, regulators, pillar valves are also serviced.

Here is where the precisely machined parts, silicone and o-rings, valves and regulators come together so that we can enjoy the underwater world we love so much.


Your regulator could be the most important piece of equipment you own and should at least be serviced annually or every 200 dives, whichever is sooner. Many of today’s manufacturers offer a lifetime warranty on parts as long as you have the equipment serviced regularly.

At our repair bench regulators, alternate air sources, and gauge consoles are disassembled down to the last o-ring.. Next they are given a cleaning bath to remove any corrosion from the parts. The parts are then dried, inspected, and polished. O-rings, seats, gaskets, and other soft parts are replaced, lubricated, and re-installed. The equipment is then assembled and re-tuned to factory specifications. Every piece of equipment is then water tested for leaks by submerging it in our test tank.

Whether you dive once or twice a season or your in the water every weekend. Your equipment should be serviced at least once a year to keep it performing well.

Buoyancy Compensators

Your BCD should be serviced annually to check for leaks, corrosion, salt build up, and proper function. Here is an explanation on what is done. First your power inflator is removed from your BCD. It is disassembled and given a cleaning bath removing any corrosion. O-rings and soft parts are replaced and the power inflator is reassembled and tuned to factory specifications. Next the BCD is washed inside and out with disinfectant and deodorizer. Complete re-assemble of the BCD unit is finished and a 30 minute pressure test for leaks is done.

Tanks & Valves

Our repair department services many different types of tanks and cylinders. We inspect everything from steel and aluminium Scuba tanks, medical oxygen cylinders, fibre-glass reinforced fire fighting SCUBA tanks and specialty aviation and marine safety cylinders. There are many tests and inspections done on these cylinders. We have listed some of them below with a short explanation on what is involved.

Computer Battery Replacements

It is a good idea and a good habit to replace your computer or timer batteries regularly. We freshly stock most manufacturer’s batteries.

Visual Tank Inspection – Done every year

The tank is first emptied, and the valve is removed. A complete assessment of the valve is done checking for correct working order, severe corrosion, broken parts, etc. The two main o-rings are removed and replaced. Next, an external inspection of the tank is done. Here we check for corrosion, pitting, dents, and signs of fire damage. An internal inspection with a fiber optic light and dental mirror is performed. Again checking for corrosion, pitting, water, oil, silicone, or any other contaminates. Finally the valve, with new o-rings is reinstalled, and the tank is filled and checked for leaks.

Hydrostatic Testing – Done every 5 years

After the V. I. P. and the Visual Plus inspections, the cylinder is filled with water. The cylinder is then submerged in a vat of water with a secured lid. All the air is purged out of the cylinder being tested and the vat it’s submerged in. Next, the cylinder being tested is pressurized, using water pressure, to the D.O.T. specified directives. Normally this is 5/3 the working pressure of the cylinder (i.e. an aluminium 80 normally gets filled to 3000 psi and is hydro-statically tested to 5000 psi). When the cylinder is pressurized, it expands. The amount of expansion is measured through displacement in pipette tubes. When the pressure is released a second measurement is taken for permanent expansion results. If the permanent expansion is within limits the tank passes and kept in service. The tank is emptied of water, dried, stamped with the month, retesters I.D. Number, and year. The valve is installed, and the cylinder is filled and checked for leaks.