4S: Sea Strainers & Through-Hulls
4S1: Sea Strainer Cleaning and Seacocks
The sea strainers on this boat are secure and
reliable. They protect the engine, generator,
watermaker, refrigeration cooling and other systems
from water-borne debris which might block internal
equipment passages. If a sea strainer needs
cleaning (see above regarding inspection) here is
the procedure:
1) Follow the hose from the strainer to the
valve at the hull. On one side of the valve will
be a handle.
2) Turn the valve lever so it is perpendicular
to the thru-hull or hose (parallel to the hull).
3) Unscrew the top of the sea strainer. Then
remove the strainer by pulling it out the top of
the assembly. Rinse the strainer thoroughly and, if necessary, remove any debris from
the glass housing.
4) Reinsert the strainer, tighten the top cover and turn the valve back on (in line with the
thru-hull itself or its hose).
Failure to re-open the valves will overheat the engine or damage the pumps!
This entire operation will take 5-10 minutes at most, and will assure you of cool engines.
The engines’ sea strainers are aft in the engine room.
Section 4S: Sea Strainers & Thru-Hulls 4.42