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post #11 of 15 Old 10-20-2015
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Re: Sea Water Strainer

Losing prime after cleaning can't happen if below wl. Checking thruhull ingress is possible too. Not so if above. At least the sea valve gets tested, which is good. The raw water pump is often below wl so a failure there is either direct from ocean or syphon over thru the strainer No matter .thats what the valve is for.
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post #12 of 15 Old 10-21-2015
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Re: Sea Water Strainer

Originally Posted by overbored View Post
if you loose prime then you have an air leak. if the strainer and all piping are completely sealed it make no difference where the strainer is in the line. it is just a fat section in the pipeline. because it is on the suction side of the pump you can have a leak that will let air in and will not leak water out.
Right, as long as the Motor is running. Below the water line it will do both but at different times. That suction leak will turn into a real leak if the leak is below water line. From a point of view that the strainer is the most likely source of failure you may choose it put it above the WL but then again it might just not be practical. Choices..
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post #13 of 15 Old 10-21-2015
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Re: Sea Water Strainer

Wow, a 12-year old thread and no one notices!
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post #14 of 15 Old 10-22-2015
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Re: Sea Water Strainer

Or cares? ;-)

Timely for me, regardless - I'm about to replace everything from the thruhull inward, engine included!

Albin 79 "Catharsis" - moored in Whiskey Slough, Pender Harbour
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post #15 of 15 Old 10-22-2015
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Re: Sea Water Strainer

Jim, probably everyone noticed. Boaty problems and opinion of solutions remain constant .It's the viewing public that changes.
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