Scupper question

[BTF112989]

I have a 1992 Sailfish 190 Sport offshore fishing boat that has two scuppers on the transom. They are the typical rubber flap scuppers that should not be below the waterline. But due to the weight of my engine they are below the waterline when my boat is in the water. When two people stand in the back of the boat water floods in through the scuppers and back onto the deck through the deck drain holes with this scupper type. I have had the scuppers replaced twice but the problem still occurs so it is not the actual scuppers themselves. I need a scupper that will seal tight enough to not let water back in. I am looking into two designs of scuppers now: a duckbill scupper http://www.thmarine.com/product.cfm?PRID=189 <br />and a sea scupper http://www.boatersworld.com/product/712181.htm. <br />Which design do you think would seal the water out better? Has anyone had any personal experience with these two designs and if so did you like them or not? And if you had any other suggestions or scupper ideas or designs please tell me about them.<br /><br /> Thanks,<br /> Ben Fredericks

 

[Reel Poor]

Re: Scupper question

Your second link does not work. But by the numbers in it Im sure this is the scupper your talking about. <br /><br />The balls work better than the flapper kind that you have now. Looking at the duckbill scupper I would tend to think it may keep water out better than either of the others. Remember that once the rubber starts to deterioate none of them will keep the water out. No personal experiance with the duckbill.

 

[BTF112989]

Re: Scupper question

Thanks for answering back. That is the scupper that I was talking about with the ball in it. I thought that the ball would work better but then I started to consider the duckbill scupper. The only concern I had with the duckbill was that a peice of rubber was sticking so far out. I also think it would deteriorate even faster then the flap kind because it is so thin. Have you had the sea scupper with the ball in it before. What was your impression of it. My main concern is keeping the water from coming in the boat since the scuppers are about 3 inches underwater when the boat is sitting still. Does the seascupper with the ball just screw on to my current through hull fitting that I have for the flap type scupper?<br /> Thanks,<br /> Ben Fredericks

 

[ed/il]

Re: Scupper question

I have the same problem with my boat. I usually leave scuppers plugged. I think I will try the duckbilled scuppers. The flap scuppers do not work. Get some plugs so you do not get wet feet.

 

[Reel Poor]

Re: Scupper question

The balls worked better than the flapper. The problem I have experinced with scuppers is while fishing they seem to catch the stuff you want to wash off the deck and that lets the water flow in and out freely. That being said I would tend to think the duckbill scuppers would suffer the same problem.<br /><br />As to how they mount, I do not know if they will interchange like your thinking.

 

[Mike Robinson]

Re: Scupper question

I have seen rubber 'socks' similar to the duck bill scuppers except they are made of a flexible rubber like material (vinyl maybe). They can be found on the transom of rigid hull inflatables and they have a rope lanyard on the end of them so that when not needed the ends are pulled up tight and the ends are above the surface of the water.

 

[BTF112989]

Re: Scupper question

I've just decided to get the sea scuppers with the ball in it. I got the Rabud one that has a offset hole on the pvc seal. I will put the offset seal hole on the top side of the scupper. That way when the ball floats to the top of the cup it will be sucked onto the hole immediatly. I am also going to get plugs for the inside of the boat so no water will flow back in. With me it was more important to keep water from coming in then going out because the scuppers are underwater so i think the ball will work better. The deck holes that lead to the scupper outlets are too big for my plugs to fit in. Are there any plugs larger than the twist in ones that I use for my main drain plug hole so I can use them for the scupper drain holes?<br /><br /> Thanks,<br /> Ben Fredericks

 

[ed/il]

Re: Scupper question

Originally posted by Mike Robinson:<br /> I have seen rubber 'socks' similar to the duck bill scuppers except they are made of a flexible rubber like material (vinyl maybe). They can be found on the transom of rigid hull inflatables and they have a rope lanyard on the end of them so that when not needed the ends are pulled up tight and the ends are above the surface of the water.

This sound like it would be a great option for boater with low scuppers. Would need a clean way to run lanyards. The hardest part would be finding where to buy them.

 

[BTF112989]

Re: Scupper question

But would it work for mine since my scuppers are a good 3 inches below the waterline? I don't think the ends would be above the surface of the water since mine are so low in the water.

 

[Mike Robinson]

Re: Scupper question

I tried searching for them on the web with no luck <br /><br />I have seen them quite long (6 to 8 inches). The lanyards go through grommets near the end of the sock and are secured at the top of the transom with a "cam cleat" so that they may be quickly released to drain water.

 

[BTF112989]

Re: Scupper question

Those sound neat. Well RIB's might need to get water out in a hurry so that is what they need.