Replacing Spartan SeaCocks with Groco - some questions
Moderator: Jim Walsh
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Re: Replacing Spartan SeaCocks with Groco - some questions
I replaced my raw water seacock over the last two weekends. In case anyone wondered what grows behind a bronze pre-screen take a look at this first photo. This just seems like a really bad idea to have a permanent pre-screen (no hinge). The growth extended to the through-hull, so I had to resort to a grinder to grind it off. Needless to say, the finished installation has a conventional through-hull without a pre-screen.
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- Bronze Screen.jpg (1.06 MiB) Viewed 496 times
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- Through Hull Removal.jpg (1.33 MiB) Viewed 496 times
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- Finished Installation.jpg (886.06 KiB) Viewed 496 times
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Sir Isaac Newton
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Re: Replacing Spartan SeaCocks with Groco - some questions
Good job! Correct. No screens for intakes. That is an old technique no longer recommended.
Re: Replacing Spartan SeaCocks with Groco - some questions
Interesting post about the marine growth at the raw water intake.
I did not have those problems.
I was rather surprised when I removed the strainer and there was no marine growth at all.
I had always painted the outside of the strainer with ablative antifouling paint but had never removed
the strainer to paint.
When I removed the strainer in order to replace the thru-hull I saw a good coating of antifouling paint still there and no growth.
After I replaced the thru-hull and seacock I attached a hinged strainer to facilitate future maintenance.
I attached it with 4200 onto the bare gelcoat and then painted inside and out with antifouling paint.
I did not have those problems.
I was rather surprised when I removed the strainer and there was no marine growth at all.
I had always painted the outside of the strainer with ablative antifouling paint but had never removed
the strainer to paint.
When I removed the strainer in order to replace the thru-hull I saw a good coating of antifouling paint still there and no growth.
After I replaced the thru-hull and seacock I attached a hinged strainer to facilitate future maintenance.
I attached it with 4200 onto the bare gelcoat and then painted inside and out with antifouling paint.
Ken Easley
Intrepid 9 Meter - Felicity
Southport Harbor, Connecticut
Intrepid 9 Meter - Felicity
Southport Harbor, Connecticut