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 seacock replacement		  New Topic  Topic Locked
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cmckitrick
Navigator

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USA
119 Posts
Initially Posted - 03/17/2008 :  22:26:09  Show Profile
I am embarassed to say that my '81 Catalina still has the orgional gate valve seacocks. I am hoping to get some help and replace them. It has been covered all winter but if I remember there are three of them. Does anyone happen to know the sizes? I have to get reaquainted with what is there and how to replace them though as I said I hope to get some experienced help. Thanks.
Charlie McKitrick
Norwell, MA
Valiant Lady... for now
'81 C 25 SR/FK
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OLarryR
Master Marine Consultant

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USA
3467 Posts
Response Posted - 03/18/2008 :  05:29:38  Show Profile  Visit OLarryR's Homepage
I am not positive what was used but the Catalina Parts Manual lists the seacock as a 1/2" gate valve. At least for the main sink. The parts manual does not indicate what Catalina years it represents. Calling/Emailing Catalina Yachts Parts Dept may be able to provide you the specific info if no one else with an '81 provides it.
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tinob
Master Marine Consultant

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USA
1883 Posts
Response Posted - 03/18/2008 :  08:36:16  Show Profile
HI, CHARLIE.

DON'T KNOW FOR SURE, BUT WHAT I DID WAS BUY A BUNCH OF PLUGS AND TIED THEM EACH TO THE OLD SEACOCKS AND THEN ORDERED CATALINA DIRECT'S REPLACEMENT KIT. COULDN'T SHAKE THE OLD TO-HULLS LOOSE AND SO ALL IS AS IT WAS. MAYBE NEXT YEAR

VAL ON THE HARD DAGNABIT,# 3936, PATCHOGUE, N.Y.
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farrison
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USA
166 Posts
Response Posted - 03/18/2008 :  10:45:57  Show Profile
Both of my '82 seacocks are 1/2".

Paul
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Dave Bristle
Master Marine Consultant

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Djibouti
10005 Posts
Response Posted - 03/18/2008 :  14:29:28  Show Profile
Charlie: Are those valves on bronze pipes set into epoxy "volcanos" inside, with no visible flange (just a hole) on the outside of the hull--the original Catalina "to-hulls"? If so, you might want to do more than replace the valves... Search the C-25 archives for "to-hull".
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cmckitrick
Navigator

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USA
119 Posts
Response Posted - 03/18/2008 :  15:20:44  Show Profile
What you described, Dave, sounds right. I don't think anything has changed down there since for a long time. I was planning on replacing everything. I will search the site somemore. Thanks for your input.
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Dave Bristle
Master Marine Consultant

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Djibouti
10005 Posts
Response Posted - 03/18/2008 :  21:00:28  Show Profile
In a nutshell, you want to remove the pipes (sometimes scarily easy--they're threaded into the epoxy), grind the volcano somewhat flat, install proper thru-hulls (bronze or marelon) with mushrooms on the outside, and add ball-cocks to them. If you sleep on board, you'll sleep better.
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tight
Deckhand

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USA
14 Posts
Response Posted - 03/18/2008 :  22:39:02  Show Profile
I'm currently replacing all thru hulls on my 80 25. You can get kits from Catalina Direct or obtain the Marelon fittings from any supply house. I' replased three thru hulls and valves, also replacing scupper drains and bilge thru hulls. Dusty job - use a good filter mask if you do it yourself.
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stampeder
Master Marine Consultant

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1608 Posts
Response Posted - 03/19/2008 :  10:29:28  Show Profile
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote">I am embarassed to say that my '81 Catalina still has the orgional gate valve seacocks<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">

Good topic & info. I have a single thru-hull fitting and had water gush into my boat when the sink drain hose was accidently knocked off the bottom of the sink and fell into the bilge. I've got it secured now, but it is no substitute for the proper hardware.

admitting to embarrassements - you're not alone.
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Richard Lane
Deckhand

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USA
3 Posts
Response Posted - 03/19/2008 :  11:56:48  Show Profile
<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by cmckitrick</i>
<br />I am embarassed to say that my '81 Catalina still has the orgional gate valve seacocks. I am hoping to get some help and replace them. It has been covered all winter but if I remember there are three of them. Does anyone happen to know the sizes? I have to get reaquainted with what is there and how to replace them though as I said I hope to get some experienced help. Thanks.
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">
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Richard Lane
Deckhand

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USA
3 Posts
Response Posted - 03/19/2008 :  11:59:50  Show Profile
Catalina Direct has everything you need, although it is nothing special. They will send you a kit with everything you need for one through hull. You can also purchase everything you need from West Marine. I would go the Catalina Direct route. They are very user friendly and offer technical support. I just replaced the through hull on my 82 Catalina. Good Luck!<blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by cmckitrick</i>
<br />I am embarassed to say that my '81 Catalina still has the orgional gate valve seacocks. I am hoping to get some help and replace them. It has been covered all winter but if I remember there are three of them. Does anyone happen to know the sizes? I have to get reaquainted with what is there and how to replace them though as I said I hope to get some experienced help. Thanks.
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">
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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.