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no part of it is sticking up or out of the groove. You can then apply a slight layer of silicone if you have not
done this yet. Be sure it is completely seated in the channel for a proper seal.
Note
Lubrication of an O-ring does not improve the seal. It only reduces the
amount of friction on the O-ring when it is being moved into sealing
position. The amount of lubrication required on the O-ring is only enough
to allow it to slip into place without friction, so it does not twist or become
dislodged. More grease is not better, and could in some cases have a
negative affect if it is applied in large amounts to form a build-up that
could trap any debris or foreign matter.
CLOSING THE HOUSING
1. Place the housing back over the front and align the complete mating surface of the housing and
the O-ring, forming a proper seal.
2. Position all four latches over latch hooks in ready position.
3. Close one of the bottom latches first, maintaining pressure on the other side. Proceed by closing
the other side's top latch. Then close the remaining bottom latch and the remaining top latch. Test
all latches carefully to make sure that they are completely locked into place and not just pushed
down. Try to open them to make sure that they cannot open accidentally.
4. Inspect the O-ring for proper closure. A complete seal can be visually confirmed by the O-ring
around the complete circumference of the housing.
5. Always take the first dive without your camera in the housing just to make sure there is no leakage
from damage to the housing. During the dive, especially at the beginning of descent, take special care
to look at the housing to make sure no bubbles are escaping from it and that no water is entering.
Generally, if there is a problem with the seal, you will discover it in the first seconds of the dive.
6. After use, when opening the housing, it is important to hold it so the lens port is facing down. This
will prevent the camera from slipping out of the housing while being opened. Release the four latches