New hole needed

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mytoy28
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Joined: Sat Feb 21, 2015 11:01 am

New hole needed

Postby mytoy28 » Fri Nov 27, 2020 1:13 pm

I have to make a extra intake hole for a 3/4 inch seacock to supply water for a new toilet.
what is the best way to make a hole in the hull and to install the seacock, what is the best & easiest to buy.
John
John Visser
1984 28` Sportsman F.B.
Twin Crusader 229 CI 220 HP
Killarney Bay, Killarney, ON, Canada

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GB49
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Joined: Sat Jul 12, 2014 8:23 pm
Location: Catawba Island, OH.

Re: New hole needed

Postby GB49 » Fri Nov 27, 2020 4:28 pm

A drill and hole saw will work. Hull is not that thick. Just make sure the saw is for metal and not wood.

Can get the bronze seacock and thu hull from West Marine. Don't forget "below the waterline" adhesive and a package of gloves. Also helps to have 2 people. 1 inside to tighten and 1 outside to hold the fitting.
1986 Sedan 32'. Twin Chrysler 360in^3, 275hp, with K&N flame arrestors.
Forum member since 1998, 1262 original forum posts.

Rockit
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Location: Phoenix, AZ

Re: New hole needed

Postby Rockit » Sat Nov 28, 2020 10:35 pm

If you use bronze remember to isolate it from the hull. When they installed the upgraded seacocks on my 28, they used plastic bushings on both sides. However, some people use marelon so they don't have to fuss with all that.

Nothing like youtube: https://www.youtube.com/watch?v=E9h__bObMcw

She has some great points--make sure your unit fits, measure carefully, dry fit, etc.

Good luck.
Joe Napoli
1977 28' Express
Twin raw water cooled 318s
Beaver River--near mile 25 on the Ohio

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Busia
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Re: New hole needed

Postby Busia » Sun Nov 29, 2020 3:26 pm

I just used the seacock that supplied raw water for the port engine. What little water you use for the head won't make a difference to the engine. I welded up all the holes in the hull that I could eliminate.
BUSIA
located in Ketchikan, Alaska. Gods country
32 foot Marinette express. (no fly bridge)
twin 350 Crusader (Chev 350) engines
1:1 Borg Warner velvet drive transmissions
Closed cooling (antifreeze in the engine)
Proud to be retired IBEW