Regulators: Post dive procedures
AFTER DIVE PROCEDURESProviding the best possible preventative and routine maintenance before, after, and between dives will help to
ensure the maximum life of your SCUBA Regulator. To achieve this goal, there are a number of simple,
yet important, routine maintenance procedures that should be followed by the diver after each use of the equipment. The
following procedures should be diligently followed in order to obtain the maximum life and serviceability from
1. After each day of diving, the regulator must be cleaned, inspected, and prepared for the next use, or for
storage. As soon as the regulator is removed from the air cylinder, reinstall the dust cap over the regulator
inlet port. This cap is normally attached to the rst stage and therefore has been underwater. Be sure to dry
all the water out of this cap before securing it over the inlet port. Ensure that the o-ring, if tted, is in place
inside the dust cap.
2. As soon as possible after diving, the regulator should be soaked in warm, not over 50°C (122°F) water to
remove salt and mineral deposits. The preferred method is to attach the regulator to a charged air cylinder,
open the cylinder valve, and thoroughly soak both the rst and second stage regulators. Pay particular
attetion to directing water into the mainspring cavity of the rst stage regulator, the second stage mouth-
piece, and the holes in the second stage cover. Depress the purge button several times while the regulator is
submerged in water. Dry the regulator by pressing on the purge button with the mouthpiece pointing down.
Place the dust cap in position in the yoke, or over the DIN screw. Soaking regulator parts in warm water will
remove more salt and mineral deposits than will conventional rinsing. It will loosen deposits on interior
components that rinsing will not (if no charged air cylinder is available, follow the above procedure but be
very careful NOT to depress the purge button, or leave dust cap o, when the regulator is submerged in water.
Failure to do this will allow water to enter both regulator stages and may result in internal corrosion). Simply
soak the exterior of the first stage thoroughly, and proceed as above when cleaning the second stage.
3. Store in a clean equipment box, or as an alternative, seal inside a plastic bag. Store in a clean dry place.
4. Lightly lubricate the yoke screw with silicone grease.
5. Never store the regulator while it is still connected to the diving cylinder.
6. Do not use any type of solvent to clean any part of the regulator. Do not expose any part of the regulator to
silicone spray, as some aerosol propellants attack or degrade rubber and plastic material.
7. Do not carry the diving cylinder by the regulator as such abuse will eventually damage the regulator or the
cylinder valve. Do not expose the regulator to unnecessary shocks or impact.