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 Catalina 25 Specific Forum
 Sink Drain Traps		  New Topic  Reply to Topic
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keats
Navigator

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USA
216 Posts
Initially Posted - 12/20/2025 :  13:43:22  Show Profile  Reply with Quote
The drain trap on our galley sink unceremoniously gave way and we didn't find out until we opened the top drawer and found it full of dishwater.

The original drains had a small thumbscrew at the bottom that held everything together and allowed disassembly, I guess for cleanining or retrieving the old wedding ring. The fastener was corroded beyond recognition and whether it was stainless steel or brass, I don't know.

Found the drains below on eTrailer.com for about $14 each (going to do the sink in the lav as well). I won't be using the cheap hose that comes with the drains.



Threads (1-1/2 x 11.5 Straight Pipe) and hose barb (3/4 ID) look to match up nicely and, if sucessful, will be one of our less expensive repairs.

Check yours it you have them!
Tim Keating
1985 C-25 TR/FK #4940
Midsummer
Lake Don Pedro, CA
Edited by - keats on 12/22/2025 12:44:42

OLarryR
Master Marine Consultant

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USA
3478 Posts
Response Posted - 12/20/2025 :  21:40:41  Show Profile  Visit OLarryR's Homepage  Reply with Quote
Thanks for the info!
Cannot recall when I ever inspected the drain connections.
I should be down there sometime next week ....I'll try to remember
to take a look.
Larry
'89 Robin's Nest#5820, Potomac River/Quantico, Va
http://catalina25.homestead.com/olarryr.html
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Voyager
Master Marine Consultant

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USA
5431 Posts
Response Posted - 12/22/2025 :  09:12:25  Show Profile  Reply with Quote
Tim, thanks for the heads up! Last summer I found a similar puddle underneath my head sink when the tiny bolt finally gave way (after 40 years). The trap itself had not been damaged but the bolt and threaded receptacle were gone.

Having a fine collection of stainless steel bolts, washers and nuts in my toolboxes, I found that I could replace the threaded receptacle with a nut that I epoxied into the housing, and replaced the old thumbscrew bolt using a new bolt, a washer, and a tiny O-ring. No leaks now.

Who knew? I could’ve spent $14 and had a brand new drain trap!
This spring I’ll check it again, and if need be, I’ll try etrailer-com for the replacement.

I appreciate it!
Bruce Ross
Passage ~ SR-FK ~ C25 #5032

Port Captain — Milford, CT
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mailboat
Deckhand

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USA
1 Posts
Response Posted - 12/30/2025 :  16:23:22  Show Profile  Reply with Quote
Thanks for the info on the sink drain.

I have a question not directly related to the drain but close. On my newly purchased '90 C25 the galley sink pump doesn't function. I haven't tried to fix it yet but thought if you guys had fixes for galley pumps, I'd ask now. The sink pump in the head area still works fine. Any input appreciated.
Ken Thompson
Sea Bee
'90 C25WKTR
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islander
Master Marine Consultant

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USA
4030 Posts
Response Posted - 12/30/2025 :  17:00:58  Show Profile  Reply with Quote
Catalina Direct sells the rebuild kit for the flipper pump if it turns out you need it.

https://www.catalinadirect.com/shop-by-boat/catalina-25/interior/plumbing/maintenance/galley-hand-pump-quotflipperquot-service-kit/?SearchResults=1
Scott-"IMPULSE"87'C25/SR/WK/Din.#5688
Sailing out of Glen Cove,L.I Sound


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Voyager
Master Marine Consultant

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USA
5431 Posts
Response Posted - 12/30/2025 :  21:53:15  Show Profile  Reply with Quote
Ken, it’s an easy repair if you take it slowly. Scott, you've recommended the best approach, since the rubber gaskets and plungers simply dry out with age.
Bruce Ross
Passage ~ SR-FK ~ C25 #5032

Port Captain — Milford, CT
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.