Regal 53 SC Owner's Manual page 417

Checking Sea Water Strainer
.
STRAINER STRAINER
BODY TOP
Before servicing the sea water strainer make sure the
appropriate seacock has been closed to prevent water from
entering the boat. Turn the strainer top counterclockwise
to remove the top to access the strainer basket. Reach into
the strainer body and lift out the strainer basket.
If possible blow out the strainer basket with compressed
air or use a metal type brush to remove any accumulated
material from the screen mesh. Make sure the strainer is
centered on reinstallation.
Check all parts for wear and possible leaks including any
gasket surfaces. Do not overtighten the strainer top which
could cause strainer body damage.
. Use original replacement marine parts only. After all parts
are reassembled open the seacock and check for leaks.
Notice there is a drain hole in the bottom of the strainer
body.
Cosmetic Care & Maintenance
STRAINER
BASKET
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