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4.4 Special note on responsibility for watertight integrity:
Each housing is individually inspected and hydrostatically tested in the factory. The
design of the main piston O-ring seal is among the most reliable in the industry and the
watertight integrity is excellent. This special O-ring design provides a perfect seal even if
there is any movement between the body and lid due to change of ambient pressure.
However please note that responsibility for ensuring the integrity of the watertight seal lies
entirely with the user. 10 BAR accepts no liability for damage to, or loss of any equipment
used with, or placed inside the housing. Users are highly recommended to carry out in-water
test of the housings without installing of the camera for their first dive after change of new
ports or alternation of any new configuration. The test can be carried out by lowering the
housing with ballast to the working depth or dive down to the safe diving range.
The O-ring seal is the main barrier between the water outside and the air
space within the camera. It is an effective barrier only if the seal is properly
maintained. The O-ring seal should be inspected before every dive. The following
information is provided for your guidance in using and maintaining the O-ring seal.
4.5 Maintaining the O-ring Seal:
If the main body to lid O-ring is not installed, install the O-ring before diving. This is
the only user serviceable O-ring. Its care and maintenance are critical to the watertight
integrity of the housing. The O-ring should be replaced at the service interval (see section on
service). If the O-ring is contaminated, or not already installed, inspect, grease and install the
O-ring according to the following guidelines.
4.6 Inspection, cleaning and re-instillation of the O-ring
Tools:
A soft cotton bud or sponge applicator, make sure these are free of all chemicals or
contamination such as loose fibers, and the tube of silicone grease supplied with the housing
are required. Note other types of silicone grease specifically for use with underwater camera
equipment can usually also be used. It is advised to carry out the following procedure on a
firm clean level surface, (e.g. at a table), to prevent skidding especially useful to have when
diving from a boat.
When to maintain the O-ring seal:
Remove the O-ring periodically for inspection. It is not necessary to remove, clean and
re-install the O-ring after every dive provided the O-ring did not become contaminated. As a
rule of thumb set up the camera and housing before a day’s diving. If the housing is required
to be opened between dives for changing memory card or re-charging batteries, make sure