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Wet feet scupper fix

Old 11-04-2019, 01:25 PM
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Default Wet feet scupper fix

When more than one person gets in the back of the boat and especially with any sea water backs up the scuppers on my 25' boat. My previous boat a 25 SeaCraft had two 1.5 inch Perco drains in the middle of the back of the boat with ping-pong ball check valves the water went down the drain past the check valve then made a 90 degree turn to a through hull over the side.

This boat has large elliptical (pictures below) shaped scuppers in each corner that have about a 2" drop straight out the back. I can't stand the wet feet any longer I have already called a fiberglass guy to seal up both holes but before I start surgery I wanted a second opinion:

I'm thinking going with the following set up. On the inside a (T&H Marine - Flex Flange Thru-Hull Drain only made in 1.5") with hose to a through hull. The Through hull would be Gem Lux forged 1.5" with a duckbill insert.

Do you think that one 1.5" scupper for each side is adequate (aka two total) for a 25 foot boat or should install two for each side for a total of four?

I can't find a duckbill for a 2" or the T&H flex drain is only available for 1.5". I'd rather go with non plastic but I can't find anything that will work on the inside since I can't drop down then turn 90 degrees there is very little pitch out the back. I actually contemplated getting Gem Lux 2" grind off the bottom on each and have a local guy re-plate them or ceracoat them but I can't get duckbills to fit 2".







Last edited by captpepin; 11-04-2019 at 01:35 PM.
Old 11-04-2019, 01:33 PM
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The duckbills donít let water in but they donít let water out very well either.

consider a plug that you can insert when youíre back there fishing that you can easily remove when running, mooring or in rough water.
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Old 11-04-2019, 03:00 PM
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If thats a Regulator have you considered just replacing the rubber flapper?
Old 11-04-2019, 03:01 PM
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Been thru this. Plug it with a Piece of pool noodle
Old 11-04-2019, 04:20 PM
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You cant change gravity. The real problem is your deck is below the waterline. Unless you can get the deck higher the only option is like you said... some type of backflow preventer.

Have you considered moving weight forward?

You didn't mention the model boat you have but from one pic it looks like a high end boat. Any chance something is saturated?
Old 11-04-2019, 04:32 PM
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Originally Posted by HeadHunt View Post
You cant change gravity. The real problem is your deck is below the waterline. Unless you can get the deck higher the only option is like you said... some type of backflow preventer.

Have you considered moving weight forward?

You didn't mention the model boat you have but from one pic it looks like a high end boat. Any chance something is saturated?

This is the correct answer in my opinion. You may have a forward locker that you can plumb and fill with water when you get to the fishing grounds to balance your hull at rest and lift the rear deck above the water line so that your existing scuppers will drain.

Also check to see if the disharge of the scupper is below the level of the deck scupper and gravity will do the rest.

And if you want to change the deck drains, the ping pong style will work better than the TH Marine Flapper in that service. The Flapper is designed to drain transom motor wells.
Old 11-04-2019, 05:20 PM
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Originally Posted by HeadHunt View Post
Have you considered moving weight forward?

You didn't mention the model boat you have but from one pic it looks like a high end boat. Any chance something is saturated?
There is not much weight to move forward I donít store allot of junk on the boat.

Itís a Regulator, for all but the last two years the boat was wrack stored inside, no way she is wet, the problem is not new itís known for the 23 and 24.

I may put a trolling motor on it but that would help but not fix the problem. Iím going to set up some type of check valve this winter just looking for ideas and opinions. Does anyone think two 1.5Ē drains is too little?
Old 11-04-2019, 05:38 PM
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Originally Posted by clockwork View Post
The duckbills donít let water in but they donít let water out very well either.

consider a plug that you can insert when youíre back there fishing that you can easily remove when running, mooring or in rough water.
I bought white rubber corks from Widget.com, ran a stainless eyebolt through them and tied a length of nylon rope through each to yank out in emergencies. My scuppers would rest below the waterline with two hefty boys on board. Those rubber scupper flaps never worked.
Old 11-04-2019, 05:55 PM
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How about glassing then in and make an exit out the side like a Whitewater or a Competition.Did you try posting on Red Regulator.Its a site for regulator owners.
Old 11-04-2019, 06:08 PM
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I used those exact drains on my 26 Reg. Works fine. I did open the bilge hatch one time in snotty stuff which was my plan. I have 2 2200gph pumps and high water alarm. 1/2" starboard outside and 1/4 inside.
Old 11-04-2019, 06:19 PM
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Originally Posted by Gary999 View Post
I used those exact drains on my 26 Reg. Works fine. I did open the bilge hatch one time in snotty stuff which was my plan. I have 2 2200gph pumps and high water alarm. 1/2" starboard outside and 1/4 inside.
Thatís why I was questioning if thatís enough sounds they are a little too small. I wish I could get 2Ē as itís about 90% more area. I canít find the inside flange or duckbill in 2Ē. Iím going to glass them in permanent.
Old 11-04-2019, 06:28 PM
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Originally Posted by getthenetmontauk View Post
How about glassing then in and make an exit out the side like a Whitewater or a Competition.Did you try posting on Red Regulator.Its a site for regulator owners.
Iíve posted not as much traffic there, side vs stern should not matter as long as there is an elevation drop.
Old 11-04-2019, 06:35 PM
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pepin, I had a similar problem. In certain conditions I would get several inches of water on the deck. I replaced the stiff flap on the drain scupper with 1/8" EPDM rubber. The EPDM is very flexible. I bought a small sheet and cut them out to size and shape. The flexible EPDM sealed much better than the old flap. That fixed 95% of my problem and cost about five dollars. It is worth a try before doing all the work you are planning. Also, be very careful with those flexible drains. They are very light duty and you will be putting them in a place that will be below the water line at least some of the time in a location that is not easy to keep an eye on.
Old 11-04-2019, 06:43 PM
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Originally Posted by captpepin View Post


Thatís why I was questioning if thatís enough sounds they are a little too small. I wish I could get 2Ē as itís about 90% more area. I canít find the inside flange or duckbill in 2Ē. Iím going to glass them in permanent.
If glassing put 2 on each side. Also make the inside drains floor drains at the gutter level.
Old 11-04-2019, 06:47 PM
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Iím putting two of the gem-lux duckbills on the left and right corners of transom on my 25 rebuild. Iíll make a recessed/lowersd area in front of them that my gutter can flow to.

I have one on each side of my 21 and absolutely love them.
Old 11-04-2019, 06:54 PM
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I sure wouldn't have your scuppers glassed over if you can make the 1 1/2" duckbills work , that would be a whole lot better than 2 2" scuppers that allow water in .

I had duckbills on my old Seacraft 23 for 10 years and they worked great. No more wet feet. If you go that route, I suggest spraying the inside of the rubber with silicone , and coating the outside with bottom paint .

https://www.wholesalemarine.com/th-m...SABEgKDdPD_BwE
Old 11-04-2019, 07:33 PM
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I would make a plug for the inside that is easily removable in an emergency. Don't get emotional and drop a bunch of money before trying cheaper alternatives.

Regarding the inlet on the transom interior. Take a thin piece of rubber that is slightly larger than the inside opening then screw it to a slightly smaller than the opening piece of starboard. This would be your plug. Put a short rope on the plug so you can pull it out on case you need to.

Last edited by R Days; 11-04-2019 at 07:46 PM.
Old 11-04-2019, 07:40 PM
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Has anyone ever added foam flotation to the stern of boats with a low deck? That would seem to be a cheap option.
Old 11-04-2019, 07:42 PM
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Originally Posted by HeadHunt View Post
Has anyone ever added foam flotation to the stern of boats with a low deck? That would seem to be a cheap option.
Wouldn't that add weight to the stern causing the situation to be worse? It might help if you were sinking.

Unless you mean adding it to the outside?
Old 11-04-2019, 10:12 PM
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Originally Posted by HeadHunt View Post
Has anyone ever added foam flotation to the stern of boats with a low deck? That would seem to be a cheap option.
Outside the boat?

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