Fantasea F400D User Manual - page 21
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o Rinse the housing with a strong stream of fresh water. Let it
soak for about 20 minutes to allow the water to dissolve
any salt residues under the controls or in tight spaces.
o Operate all the controls while the housing is soaking to help
dislodge any salt residue that may be caught under or
around the controls.
o Dip the housing vigorously several times to agitate the final
remains of salt from the narrow areas or around the controls.
o Detach sync cords, arms & brackets for overnight storage.
This will greatly reduce the possibility of electrolysis and
corrosion that can build up between similar metals on the
housing.
o Dry with a clean towel or allow drying naturally in a cool
shady place.
Traveling:
o Use protective hard case when traveling to protect the
camera and housing from impact damage.
o If possible, do not check camera and housing case on
airlines. Use a hard case that can fit under the seat or in the
overhead compartment of aircraft, and hand carry.
Annual Maintenance and Storage:
o The housing's main compression and port O-ring should be
replaced every year or more often if used frequently. The
frequency of replacement depends on the user's inspection
of these seals and their condition at the time. If in doubt, it
is always better to change them in order to not take the
chance of flooding the housing.
o The seals on each of the controls should be replaced every
couple of years or more often if needed. The best indicator
of the need for replacement is if the controls become harder
to operate due to a build up of salt or corrosion.
o Store housing in a cool, dry location when not traveling. It
is recommended that the housing be stored with the two
halves together, but not with the latching buckles closed.
This will take the constant pressure off the main radial o-
ring. It is also recommended that the housing is not stored
with the port mounted.