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Post by tomten on Mar 19, 2017 21:23:35 GMT
Ok, so I don't have a well deck. But I have two terribly designed running decks. Each a foot wide, either side of a central wheelhouse outside of the main doors into the boat. Both decks slope slightly inboard, and puddle like crazy (1/2"-3/4" deep).
Changing them structuraly is not really viable. I was considering inserting a ply wedge, and then fibreglassing the whole lot in place, but I have just had an alternative idea, while chatting with a yachty friend. On yachts with central well decks they drain through plumbed in drains. Often running right through the interior of the boat. I could easily install this from the low point of the deck to a skin fitting.
What do people think?
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Post by JohnV on Mar 19, 2017 21:34:09 GMT
Personally I would go for a deck drain from the lowest point. If the drain itself is well sealed in (Sikoflex ??) then you shouldn't have leak problems.Bring the plumbing out just below deck level through the side.
I think building up the deck could end up being A) hassle to do to get it to look "right" and B) more likely to give problems with sealed in damp areas
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Post by Deleted on Mar 20, 2017 7:07:03 GMT
Put in a drain. If its possible to weld in the area then butt weld elbows are an excellent solution, if not then some sort of flange or tank fitting bolted below the deck with a hose to a skin fitting.
There is a little puddle by my wheelhouse which I drained by drilling a 20mm hole, bolting a 22mm compression tank fitting under it with stainless bolts anf plenty of PU18 sealant then another tank fitting on the hull side to act as a skin fitting then join the two with pipe.
Its too narrow bore really and blocks up sometimes.
A butt weld elbow with a bit of pipe to lengthen one leg would be far better but much more complex to do.
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Post by tomten on Mar 20, 2017 19:55:47 GMT
Thanks guys.
Welding taking place on the boat tomorrow anyway... I have some 32mm steel tube, will drop a short bit of that through a hole at the low point of the deck on each side and weld in place. It's a bit much to fully weld the tube through to the outside of the hull, so I will connect a hose through to a skin fitting. I guess the joint to the deck is the most likely place to leak, so having that welded at least should be a good step in the right direction.
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Post by Deleted on Mar 20, 2017 19:58:34 GMT
That sounds ideal  Good luck with it. |
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Post by JohnV on Mar 20, 2017 20:51:50 GMT
sounds good to me ..... (provided you are a better welder than me )  |
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Post by Deleted on Mar 20, 2017 21:08:17 GMT
sounds good to me ..... (provided you are a better welder than me ) Overhead welding from under the deck is quite demanding. Could weld from above and grind it back but I think that might fail. |
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Post by lollygagger on Mar 20, 2017 22:27:19 GMT
sounds good to me ..... (provided you are a better welder than me ) Overhead welding from under the deck is quite demanding. Could weld from above and grind it back but I think that might fail. I'd make it a tight fit, stick it half up through the plate and weld from above. |
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Post by tomten on Mar 22, 2017 20:59:01 GMT
It wasn't me doing the welding, luckily!
Ended up with a loose fit, flush to the deck and filling the gap all around with weld. Ground flat they look pretty smart.
Need to get some hose and through hull fittings pretty sharpish, they collect quite a bit of water, and I only have small buckets.
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Post by Deleted on Mar 22, 2017 21:02:24 GMT
Could you temporarily plug the hole with a squash ball or something?
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