UBUC Maintenance Documentation

This club exists to provide for its members facilities, opportunity and training for underwater exploration, science, and sport.

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Cylinder Check

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Responsible Officers

Procedure Log

Date Member Supplier Cost Comment


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Required Items

Item Attributes In Stores? Replacements to buy


Lux cylinder manual ( )Wash the cylinder in clean soapy water. Remove the boot and inspect and wash under the boot Equipment and Signals ( ) .


Lux cylinder manual ( )Look over the surface of the cylinder for any obvious defects and record them. Roll it on a flat surface checking for distortion. Turn it upside down and listen for loose items or liquid moving inside


If the cylinder is in use then fit a reg to the cylinder and verify the tap turns on and off easily and that the O-ring is in good condition. Breath from the reg and check for any odd taste in the air. Check the pressure in the cylinder.


To distinguish Nitrox Cylinders a cylinder should have a Green Valve Handle only if its O2 Clean is in date and nothing has been logged indicating that it is not clean. Otherwise it must have a Black Valve Handle . Cylinders that are broken are distinguished by the plastic handle being removed. Removal and re-fitting of the cylinder valve handle requires the Valve Handle Wrench .


To prevent water entering the service the cylinder must not be fully drained. If the cylinder is not in service due to being out of date then the gas left in it should not exceed 5 bars of pressure

Check Date Stamp

Check the last recorded date for the cylinders Hydraullic Test matches the date stamped onto the shoulder of the cylinder.


Verify that a UBUC Label is attached and log completion of the inspection, the items operational status and any conditional comments.