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 size thru hulls/to hulls		  New Topic  Topic Locked
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cmckitrick
Navigator

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USA
119 Posts
Initially Posted - 02/27/2005 :  08:13:50  Show Profile
I may have asked this before but do people know the size of the origional gate valves and pipes of the to hulls? I want to replace them with regular seacocks and mushroom fittings and am not sure what size pieces I'll need. Thanks.
Charlie McKitrick
Norwell, MA
Valiant Lady... for now
'81 C 25 SR/FK
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Dave Laux
Captain

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318 Posts
Response Posted - 02/27/2005 :  08:33:43  Show Profile
On our 1987 the fwd sink drain is 1/2 IPS and the galley sink and cooler drain is 3/4 IPS. Just went out and looked at the boat and these are correct. Dave
Edited by - Dave Laux on 02/27/2005 08:41:27
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cmckitrick
Navigator

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USA
119 Posts
Response Posted - 02/27/2005 :  09:15:45  Show Profile
Thanks, Dave. I feel like a dummy on this subject and there have been a lot of posts on it (many from me). I have a lot of stuff straight but one thing I'm not sure about. The gate valve underneath the V berth. I know it is the sink drain but if you are discharging waste into the water where does that exit and where does the raw water intake enter? I only see two to-hulls. I know the other is for galley sink and cooler drain. One of these days I will have this straight. I find the literature that came with the boat is not much help and since the boat is covered I can't get in there to go poking around.
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Dave Laux
Captain

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318 Posts
Response Posted - 02/27/2005 :  09:53:03  Show Profile
Do you mean that you have an overboard discharge head? If so it has (or should have) a 1/2 or 3/4 IPS intake, this may be hooked into the sink drn, and a 1 and 1/4 or 1/2 IPS discharge that may be anywhere. Dave
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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts
Response Posted - 02/27/2005 :  10:06:57  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 />...The gate valve underneath the V berth. I know it is the sink drain but if you are discharging waste into the water where does that exit and where does the raw water intake enter? I only see two to-hulls...<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

Charles,

The sink waste water discharge and the head intake share a common through hull. This means that whatever is poured down the vanity sink today may become tomorrow's flush water for the head.
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cmckitrick
Navigator

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USA
119 Posts
Response Posted - 02/27/2005 :  10:11:52  Show Profile
Thanks, Don. I was just looking at the manuals and they have a diabram with the intake behind the head which as far as I can tell just is not the way it is on my boat. The only remaining mystery is where the discharge exits. That should be easy enough to see once the snow melts and I can get up there and flush.
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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts
Response Posted - 02/27/2005 :  10:19:24  Show Profile
Charlie,

Are there two lines going to your gate valve in the V berth?
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cmckitrick
Navigator

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USA
119 Posts
Response Posted - 02/27/2005 :  19:07:07  Show Profile
Yes I believe there are but it is still new to me and it's been undercover all winter. As soon as the weather warms and snow melts I'll be able to check it out but as I recall there is one entering from either side.
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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.