Scupppers

[ben_460]

Hi , I recently got a new boat ( 2nd hand ) and have found the scuppers leaks a bit.

Any suggestions to improve this set up ?

They don't sit flush as the pod is curved slightly , trying to bend them to match doesn't seem to be working really well.








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[wirlybird]

A bit of water on the deck can be nice on a hot day

[scubapro]

Ben looking at the last pic it appears the the scupper could be bent just where the piece of metal ends half way on the scupper to match the hull.
It appears to be a fairly easy job. It might help if you removed it and bent it carefully in a vice.
In addition to to bend try making up a washer from thick rubber or neoprene which might stop water coming in.
Good luck

[scottar]

Personally I would silicone them shut and fit a bilge pump - but that's just me - hate wet feet. Only way to make a seal that has a half a chance will be to use a sealant, let it set and then cut with a very sharp knife. Not enough weight in the lid to compress even a soft rubber gasket. You could fit an eye bolt and run a bungy cord through the scupper and secure it internally to create sealing pressure and use a soft seal.

[Moejoes]

Do you have the same size hole on the inside?
If so, just cut some closed cell foam, rubber or cork slightly oversize and chock it from the inside.
Would need to be at least 50mm thick.
Push a small cord through the centre of the chock with a knot and stainless steel washer on the inside so you have a tag and can pull it out if needed.
Especially when crossing bars or in rough weather otherwise you'll loose your self draining.

[Cape Crusader]

You could probably get a seal by choosing one side of the seal to apply silicone and puts something like a bit of cooking oil or something that the silicone wont stick to on the other surface. Then tape shut until the silicone sets. Should be a perfect seal
This is an old trick for sealing old fridge door seals :-)
Cheers
Rod

[Out-Station]

I recon the right way would be to get a fabricator to cut and shape a bit of flat 4mm plate over the hole (hole through it) so you end up with flat level hole surface. Extend the flap leg a little and it will be the way it should have been.

Scott

[swof63]

You could probably get a seal by choosing one side of the seal to apply silicone and puts something like a bit of cooking oil or something that the silicone wont stick to on the other surface. Then tape shut until the silicone sets. Should be a perfect seal
This is an old trick for sealing old fridge door seals :-)
Cheers
Rod

Glad wrap. Works a treat even with bog.



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[Cape Crusader]

They will probably always leak to some degree if they are are regularly going under water
Cheers
Rod

[ranmar850]

It looks like the plate had pulled when the bracket was welded on, and the welder didn't care enough to prevent it happening. Something like that which relies purely on gravity to keep it sealed will never be perfect. Best you can do is probably what some have said, make your own gasket from silicone on the face of the plate and put some release agent on so it wont stick while curing. Done carefully, it shouldn't be very obvious when the scupper is closed . It is good to have self draining in an emergency--but, of course, if you take too much water on, they become self-filling unless you can get motoring. The very best of bilge pumps above deck really don't shift enough water to get you out of trouble in a short time if you take enough on to affect stability.

[Noelm]

Looks like a poor attempt at a self draining deck in a boat that shouldn't have one! a "scupper" that goes under water and let's water in is nothing more than a leak, best option, straighten the flap as best possible, make a gasket (out of wetsuit material?) and use a stretchy rubber cord to hold it shut, a decent amount of water will push it open, and you can just unhook it when hosing out?

[Lovey80]

Silicone gasket then sikaflex/bolt a dirty great big piece of lead to the topside. Make sure you insulate the lead from the ally well though.

[Smithy]

I'd put some rubber underneath then make up an occy strap or bit of rope to a jam cleat arrangement to keep them shut with a bit of tension. If you ever wore a wave or for cleaning at the end of the day you could release the tension so water/rubbish can drain out. Lots of game boats have this arrangement for their freeing ports.

[ben_460]

Cheers, I like the glad wrap idea then form a seal. Might give that a shot and see what happens .

I haven't had heaps of water come through as it goes up hill to the deck . Carpet gets wet so sleeping on the deck might be shitty.


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[BigE]

Have a look at "scupper buddies" not for your style of scupper but you could use the same theory to make a light spring for a positive close and some stika to make a nice sealing face. make sure the spring tension will open under load (water pressure ) from the inside.

BigE