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Catalina/Capri 25/250 Sailor's Forums

General Sailing Forum

To Hull Repacement with photos.

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OJ
Master Marine Consultant

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USA
4382 Posts

Response Posted - 03/20/2002 : 11:57:29

Val, it must be a generation thing. When I was at Culver we used a lint brush.

Steve Madsen
#2428
OJ (Ode to Joy)

Edited by - on

William Matley
1st Mate

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52 Posts

Response Posted - 03/20/2002 : 19:17:11

Now that we have the ?to hulls? removed and replaced, what?s the general wisdom on gate valves? My boat has 2 fresh water type brass screw shut off valves. I see marelon and bronze seacocks as well as one lever bronze ball valves. What?s the plan now?

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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 03/20/2002 : 20:20:27

A couple of questions:

1. What type of sealant did you use on the thru-hulls?

2. Did you install a backing plate for the thru-hulls?

3. When installing the bronze valves to the bronze thru-hulls, did you use a thread sealant?

4. Are you also replacing the cockpit scupper thru-hulls?

Don Lucier, Northstar
C25 SR/FK

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Ed Montague
Captain

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USA
499 Posts

Response Posted - 03/21/2002 : 01:35:57

Don,
1. I used 3M 5200 for a very permanent fix.

2. No backing plate. The hull is very thick at this point of the hull and there is little force on the fitting. Some others here will say they used a backing plate. In my opinion this is over kill.

3. the goop put on plumbing joints is more for lubrication then for sealing. If the joint leaks when properly tightened then the fittings are faulty. I use the stuff so that in the future I can get the joints apart.

4. Excellent question. I haven't replaced the scupper thru-hulls. There is practically no force acting on the these thru-hulls. They don't even touch the water when the boat is in the dock. That is going to be a judgement call for your comfort level. The later model C25's don't have this type of scupper. Take a good grip on the brass pipe and give a yank. If there is no give.......

Ed Montague on 'Yahoo'
1978 #765 SK, Stnd, Dinette ~_/)~

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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 03/21/2002 : 01:46:51

Ed,

Thanks for the info! I appreciate it.

Don Lucier, Northstar
C25 SR/FK

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n/a
deleted

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163 Posts

Response Posted - 03/21/2002 : 09:48:55

I'd recommend either bronze or Marelon seacocks. Gate valves have no place in a marine environment.

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Douglas
Master Marine Consultant

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1595 Posts

Response Posted - 03/21/2002 : 19:42:15

Pudate on the project so far. After removing the old to hulls and grinding the inside surface of the hull flat and smooth I began to install the through hull fitting. Cleaned up the holes in the hull and then coated the interior surfaces of the hole with glass resin to seal any exposed ply edges. I was impressed at how thick the hull was at these locations. I could see the area had been built up to be extra strong at the through hull areas. Im realy glad I started this project as you can see in one of the photos the to hull had begun to corrode and fail. I found two like this. Here are some self explanitory pics.<img src="http://im1.shutterfly.com/procserv/47b2dd00b3127cce9d5f16f68cc30000004410" border=0><img src="http://im1.shutterfly.com/procserv/47b2dd00b3127cce9d5f16f10df40000004410" border=0><img src="http://im1.shutterfly.com/procserv/47b2dd00b3127cce9d5f16fa8ccf0000005410" border=0><img src="http://im1.shutterfly.com/procserv/47b2dd00b3127cce9d5f16088c3d0000004410" border=0><img src="http://im1.shutterfly.com/procserv/47b2dd00b3127cce9d5f16028c370000005410" border=0>

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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 03/21/2002 : 23:08:37

A couple of more questions.

1. Assuming you are using a 1/2" mushroom thru-hull, what type of valve will you connect to it? Seacocks or Ball Valves? Bronze or Marelon?

2. If you are using seacocks, how are they attached to the thru-hull? Looking at them in the West Marine catalog they look like the are designed to be screwed on to the fitting all they way down to the hull. Additionally, the catalog doesn't list a 1/2" seacock.

3. I've read posts where people have recommended bronze ball valves on the thru-hulls, but the bronze ball valves on page 525 of the catalog have a note that states, "These are ball valves, not seacocks, and are not intended to be screwed onto a straight-thread thru-hull. They are for inline applications onboard." What type of ball vavle is acceptable?

Don Lucier, Northstar
C25 SR/FK

Edited by - dlucier on 03/21/2002 23:48:13

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Douglas
Master Marine Consultant

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1595 Posts

Response Posted - 03/22/2002 : 00:04:00

I still have all the maralon Ball valves. I can either use those or The bronze ball valve. Seacocks are not the same as ball valves and the valve interior is not the same. Im glad you brought up the question about what West Marine said. I will however probably use bronze ball valves for the 1/2" and 1" connections. On the 2" head discharge Im staying with the original maralon valve due to price. My main concern wasn't the valves but the to hull pipe. I think the maralon valves should be ok. As you can see the condition of my to hull was really bad.

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