Drain plugs in rear deck scuppers?

[doug228]

Ive had good luck with the ping pong ball style. Yes you have to keep them clean, My boat spends most of its life the trailer so that helps.

 

[Mustang65fbk]

The system works because water doesn't naturally flow up hill. When the boat is empty at the dock or on the hook the decks will drain and seawater ,even if it gets past the flapper won't bother anything because your deck drain is above the the scupper through hull fitting. Now if your hoses leak well you could have an issue with the water filling your bilge . New boat shouldn't have leaky hoses . Two years ago this spring I put in new stainless deck drains and new hoses.

I think that Lucky's biggest concern is the water coming in when he's standing back there and him not wanting to get his feet wet. Which I can definitely understand, especially if/when you're out fishing or using the boat during the winter and it's already freezing cold outside. And you definitely don't want your feet getting soaking wet on top of that, which yes I know boots can solve that problem, but I'm not a huge fan of wearing boots for hours on end and I don't like how the black soles can leave marks on the white fiberglass floor of the boat. I also had some water come into the back area of my boat as well when I've stood back there fishing this last winter which is always a bit unnerving to see, although I'm about 265lbs, so I'm not really a small guy either. But yes, it would be nice not to have to deal with the water flowing back into the inside of the boat.

 

[Ryhlick]

Rhylick, where again are you buying the flapper . Mine work 100% of the time just 60% of the time. It might be time to replace

Rhylick, where again are you buying the flapper . Mine work 100% of the time just 60% of the time. It might be time to replace .

I get them from amazon, sounds like it might be time.

https://smile.amazon.com/gp/product/B06XH12Y7N/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

My through hulls are bronze, not plastic like the ones pictured in the link.

 

[trapper]

Lucky, I think you want just the flappers, not replacing the whole drain. I purchased flappers locally but could only get 1 1/2 ", on my 208 the flappers are 1 7/16" so cut them down to size. It is a very close fit and they have to be right on or they will stick.

 

[luckydude]

I think that Lucky's biggest concern is the water coming in when he's standing back there and him not wanting to get his feet wet.

That's exactly right. Just one guy back there is sort of ok, but you get two working on a crab pot or something and it gets pretty wet.
I'm gonna try those stainless flappers, they look like they might work. I just need to go measure everything and make sure they fit.

 

[glacierbaze]

Lucky, check out this site. Good selection of flapper/scupper/drain options, and good prices! $30 cheaper than I have been seeing for the current GW deck drains. There are 2 styles of that drain, at least of the above deck part. If you had the SS top for the $72 one, you could just unscrew the screen in the middle, and put in two 1 1/2" plugs, like in the live well. Problem solved!
For what you will probably end up spending, you could just replace that above deck part, even if you had to buy the whole part.
Click on "Boat Thru Hull Fittings", and scroll through all the sub categories.

Deck Drain Fitting | Replacement Elbow Drain for Boats

90 degree stainless & nylon deck drain

www.replacementboatparts.com

Cockpit Deck Drain Pipe Fitting | ReplacementBoatParts

90 degree stainless & nylon deck scupper drain

www.replacementboatparts.com

 

[Mustang65fbk]

That's exactly right. Just one guy back there is sort of ok, but you get two working on a crab pot or something and it gets pretty wet.
I'm gonna try those stainless flappers, they look like they might work. I just need to go measure everything and make sure they fit.

That's the same with me on my boat. Like I said, I'm about 265lbs so I'm a bigger guy, and when I'm standing back there by myself I notice water coming in and pooling up in the corner. My uncle is about the same weight as I am and when we were both standing back in the corner fishing last winter it got a bit frustrating. I think I'll probably add some of those scuppers that I linked earlier for the outside and then replace the cheap plastic/rubber ones in the cockpit area with something like what glacierbaze linked to just above. I also think the stainless steel looks quite a bit better than the cheap plastic/rubber scuppers on the outside of a $100k+ boat, and for between $25-40 a piece, I think they'll both look nicer and perform better as well as not break the bank in the process. Amazon has the one version for $40 a piece with one day shipping depending on where you live. Pretty hard to beat that.

Amazon.com : Seaworthy Innovations 316 Stainless Steel Boat Scupper Assembly with Hinged Stainless Flapper (P/N SW1047) : Sports & Outdoors

Amazon.com : Seaworthy Innovations 316 Stainless Steel Boat Scupper Assembly with Hinged Stainless Flapper (P/N SW1047) : Sports & Outdoors

www.amazon.com

 

[luckydude]

That's the same with me on my boat. Like I said, I'm about 265lbs so I'm a bigger guy, and when I'm standing back there by myself I notice water coming in and pooling up in the corner. My uncle is about the same weight as I am and when we were both standing back in the corner fishing last winter it got a bit frustrating. I think I'll probably add some of those scuppers that I linked earlier for the outside and then replace the cheap plastic/rubber ones in the cockpit area with something like what glacierbaze linked to just above. I also think the stainless steel looks quite a bit better than the cheap plastic/rubber scuppers on the outside of a $100k+ boat, and for between $25-40 a piece, I think they'll both look nicer and perform better as well as not break the bank in the process. Amazon has the one version for $40 a piece with one day shipping depending on where you live. Pretty hard to beat that.

Amazon.com : Seaworthy Innovations 316 Stainless Steel Boat Scupper Assembly with Hinged Stainless Flapper (P/N SW1047) : Sports & Outdoors

Amazon.com : Seaworthy Innovations 316 Stainless Steel Boat Scupper Assembly with Hinged Stainless Flapper (P/N SW1047) : Sports & Outdoors

www.amazon.com

I'm super tired, not all here. Mustang, we should talk. If your boat is like my boat, the attwood scuppers are a 5.5 inch thing that goes through the hull and has a nut on it that holds it in place. I looked into the Seaworthy Innovation offerings and the one that goes through the hull is about 1.5 inches. For me, that means I need to take apart the drain in the cock pit, get a new hose that is longer, it is a big project, much bigger than pull out one scupper and trade in the new one.

Like I said, super tired, probably leaving a bunch of info out, we can talk on the phone. I'd like to make it work but not seeing it now.

 

[VittorioRizzo]

Good morning. I'm writing from Italy, so excuse me for my bad english. I'm the proud owner of a 2002 226 Seafarer powered by 2020 Honda BF250D + Yamaha T9.9, so I have a lot of weight on my stern (I have 2 100Ah batteries on the back too). When I bought the boat back in 2017 I've had the same problem : when I stand in the back of the cockpit i saw seawater flowing in because the the rear scuppers were very low. The duck flaps were in good shape but they can't be watertight by their own design. I've tried to solve the problem and found this stuff on Amazon that solved all my problems:

https://www.amazon.it/Valvola-antiritorno-DN50-aletta-acciaio/dp/B00E9RZPKK/ref=sr_1_19?crid=1Q2A8A99WK74T&keywords=valvole+antiriflusso&qid=1646468782&sprefix=valvole+an%2Caps%2C97&sr=8-19

So, what I've done : the deck drains are connected to the scuppers via a 2" OD Armoville pipe (plumbing) about 30" long. I 've cut the pipe, I've put in the middle the valve and double clamped another piece of pipe to the scupper. No more water in the cockpit! The cockpit is still self draining, just a little bit slower, but now we can stand in the back of the cockpit with no problems.
Cheers
Vittorio

 

[DennisG01]

I'm super tired, not all here. Mustang, we should talk. If your boat is like my boat, the attwood scuppers are a 5.5 inch thing that goes through the hull and has a nut on it that holds it in place. I looked into the Seaworthy Innovation offerings and the one that goes through the hull is about 1.5 inches. For me, that means I need to take apart the drain in the cock pit, get a new hose that is longer, it is a big project, much bigger than pull out one scupper and trade in the new one.

Like I said, super tired, probably leaving a bunch of info out, we can talk on the phone. I'd like to make it work but not seeing it now.

Lucky Duck... it sounds like the 1-1/2" you are referencing is the diameter... not the length. I only looked quickly at those Seaworthy things, but it looks like they're just like a typical scupper where they install OVER top of the drain tube.

 

[luckydude]

OK, less tired and back. I'll try and go over what I've learned.

The part that is in my boat is an Attwood 66553 according to Grady, it's like this:

https://www.amazon.com/Attwood-66553-3-Barbed-Stainless-Scupper/dp/B0000TX760/

and it is around 5 inches long overall so it can stick through the hull and extend in a bit so you can fasten the hose to it.

The Seaworthy people make a big deal out of how theirs is shorter, so you drill a bigger hole, push the hose through it, attach the clamps, and push the whole mess into the hole. Sounds good but it is awful from a retro fit perspective, you need a longer hose which means getting at the part that drains from your cockpit which isn't easy at all. And drilling out a bigger hole where there already is one, so you have no pilot hole to keep you centered? No thanks. That's a deal killer for me, sorry Seaworthy, I wanted to love your answer but no joy. If Seaworthy made a drop in replacement for the Attwood, that's what I'd buy but they don't.

Then our friend from Italy shows up with the right idea (Ciao Vittorio, visited your fine country in 2017 and very much enjoyed it, nobody makes lasagna like Italians do!) - he had some sort of check valve. The amazon page he linked to is in Italian and in spite of my "Ciao", I don't speak Italian so I don't know the details of his answer. But I do know about check valves, I manage a water system.

I think the thing we want is called a swing valve. I've used them when I couldn't find a spring loaded check valve and they are perfect for low pressure problems like what we have on our boats. They are extremely similar to a rubber flapper except they have a metal plate that keeps the rubber seal flat. It's the same idea without the craziness of wanting the rubber flapper to stay flat on its own. Here's a video:

So I think a swing valve is what we want. A swing valve wants to be horizontal, though ideally it would be tilted slightly so the default is the swing plate is closed, water from the cock pit will easily push that open, there is no spring, it's just gravity keeping it in place and then the flow of water coming in from the outside shuts it (exactly as the rubber flapper is supposed to shut). I _think_ that by cutting the hose and leaving a little too much hose might cause things to bend down on the "back" side of the valve so the flap tends to be closed.

The nice thing about a swing valve is no spring, it is just gravity that is trying to keep it closed which means when water is trying to leave the deck the water will have an easier time pushing open the swing than it does trying to push open the rubber flap that we have now.

I found one in PVC: https://www.pvcfittingsonline.com/2-clear-pvc-swing-check-valve.html

Unless someone says I'm an idiot and this won't work because $REASON, I'm going to give this a try. I'll remove the rubber flaps on my existing scuppers, they are useless in my opinion, just rely on the swing valve. I'm gonna get the biggest one I can fit in there because I want it to be big enough to let crud through.

Edit: went and looked at my PVC. 1 inch is too small for the hose, 1.5 inch is too big. I think if I put a threaded end on the pvc the hose will go over if I heat it up with a heat gun. If not, I'll stick that end connector in my lathe and turn the threads off, it will for sure fit then.
So a little fiddly.

Thoughts?

 

[trapper]

Just installed those Seaworthy ss scupper assembly on the splash well drains. They are flush mounted units. so used the rubber gasket from the old ones to seal the new ones. Will find out how well they work next lumpy day pulling prawn traps against the wind.
Yes, when fishing in the stern I had issues with water coming in my deck scupper drain on the starboard side (kicker side) before putting both batteries to port. Much better now. When I had the issue I used expandable plugs in the scupper drain while fishing then removed them to run. An inexpensive and quick fix.
Do hope you find a solution Lucky, one should be comfortable and at ease when on the hunt.

 

[Ryhlick]

OK, less tired and back. I'll try and go over what I've learned.

The part that is in my boat is an Attwood 66553 according to Grady, it's like this:

https://www.amazon.com/Attwood-66553-3-Barbed-Stainless-Scupper/dp/B0000TX760/

and it is around 5 inches long overall so it can stick through the hull and extend in a bit so you can fasten the hose to it.

The Seaworthy people make a big deal out of how theirs is shorter, so you drill a bigger hole, push the hose through it, attach the clamps, and push the whole mess into the hole. Sounds good but it is awful from a retro fit perspective, you need a longer hose which means getting at the part that drains from your cockpit which isn't easy at all. And drilling out a bigger hole where there already is one, so you have no pilot hole to keep you centered? No thanks. That's a deal killer for me, sorry Seaworthy, I wanted to love your answer but no joy. If Seaworthy made a drop in replacement for the Attwood, that's what I'd buy but they don't.

Then our friend from Italy shows up with the right idea (Ciao Vittorio, visited your fine country in 2017 and very much enjoyed it, nobody makes lasagna like Italians do!) - he had some sort of check valve. The amazon page he linked to is in Italian and in spite of my "Ciao", I don't speak Italian so I don't know the details of his answer. But I do know about check valves, I manage a water system.

I think the thing we want is called a swing valve. I've used them when I couldn't find a spring loaded check valve and they are perfect for low pressure problems like what we have on our boats. They are extremely similar to a rubber flapper except they have a metal plate that keeps the rubber seal flat. It's the same idea without the craziness of wanting the rubber flapper to stay flat on its own. Here's a video:

So I think a swing valve is what we want. A swing valve wants to be horizontal, though ideally it would be tilted slightly so the default is the swing plate is closed, water from the cock pit will easily push that open, there is no spring, it's just gravity keeping it in place and then the flow of water coming in from the outside shuts it (exactly as the rubber flapper is supposed to shut). I _think_ that by cutting the hose and leaving a little too much hose might cause things to bend down on the "back" side of the valve so the flap tends to be closed.

The nice thing about a swing valve is no spring, it is just gravity that is trying to keep it closed which means when water is trying to leave the deck the water will have an easier time pushing open the swing than it does trying to push open the rubber flap that we have now.

I found one in PVC: https://www.pvcfittingsonline.com/2-clear-pvc-swing-check-valve.html

Unless someone says I'm an idiot and this won't work because $REASON, I'm going to give this a try. I'll remove the rubber flaps on my existing scuppers, they are useless in my opinion, just rely on the swing valve. I'm gonna get the biggest one I can fit in there because I want it to be big enough to let crud through.

Thoughts?

My only concern is if you get some sort of debris stuck in there, it's going to be a pain to clear. Other than that, it looks like a viable solution.

 

[DennisG01]

Lucky, look at the first link that Mustang provided (this is the one I was referring to): https://www.seaworthyinnovations.com/scupper1

Remove your existing scupper and replace with this one. You're not messing with any hoses.

 

[luckydude]

Lucky, look at the first link that Mustang provided (this is the one I was referring to): https://www.seaworthyinnovations.com/scupper1

Remove your existing scupper and replace with this one. You're not messing with any hoses.

Believe me, I've looked. The existing scupper is 1 5 inch unit with a flange and a barb that goes into the hose, the part outside the transom is part of it, it does not come off. So to replace with the Seaworthy makes no sense, it won't work. You need the scupper3 link and then their overall length is about 1.5 inches so the hose has to be clamped inside of the transom.

Please read the lengthy message #31 in this thread, I went through all of this.

 

[Byram]

A better mousetrap !!!! Going to go that route, thanks for the info

 

[luckydude]

A better mousetrap !!!! Going to go that route, thanks for the info

If you get there first, tell us if it works.

 

[Mustang65fbk]

I'm super tired, not all here. Mustang, we should talk. If your boat is like my boat, the attwood scuppers are a 5.5 inch thing that goes through the hull and has a nut on it that holds it in place. I looked into the Seaworthy Innovation offerings and the one that goes through the hull is about 1.5 inches. For me, that means I need to take apart the drain in the cock pit, get a new hose that is longer, it is a big project, much bigger than pull out one scupper and trade in the new one.

Like I said, super tired, probably leaving a bunch of info out, we can talk on the phone. I'd like to make it work but not seeing it now.

Mine is completely different from yours, which is no surprise as your boat is basically brand new and mine is a 2004, but I just have the cheap plastic ones on my boat, and I believe it's the one that I'll link below from Amazon. I think for my particular application that it should work out just fine the Seaworthy Innovations one that I also linked to from Amazon before, but I can see why it wouldn't work for yours after the link you sent the other day. Sorry, I've been out of town for the last couple of days and haven't checked the forums out since I've left early yesterday morning.

https://www.amazon.com/Attwood-3876-3-Cockpit-Scupper-Valve/dp/B002FVQ0WY/ref=asc_df_B002FVQ0WY/?tag=hyprod-20&linkCode=df0&hvadid=312148125047&hvpos=&hvnetw=g&hvrand=9950459683744832020&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9033389&hvtargid=pla-583029329199&psc=1

 

[Mustang65fbk]

Just installed those Seaworthy ss scupper assembly on the splash well drains. They are flush mounted units. so used the rubber gasket from the old ones to seal the new ones. Will find out how well they work next lumpy day pulling prawn traps against the wind.
Yes, when fishing in the stern I had issues with water coming in my deck scupper drain on the starboard side (kicker side) before putting both batteries to port. Much better now. When I had the issue I used expandable plugs in the scupper drain while fishing then removed them to run. An inexpensive and quick fix.
Do hope you find a solution Lucky, one should be comfortable and at ease when on the hunt.

I'm also curious as to how well they work. Let us know.

 

[Mustang65fbk]

Also, if you wanted to go the Seaworthy Innovations route... could you replace what you have with a plastic one like this and then use the SI stainless steel scuppers on the outside to screw into the plastic thru hull?

Attwood Marine

Attwood Marine offers a broad range of boating and marine accessories. Visit us to find info for Thru-Transom with Scupper and to find out where to buy.

old.attwoodmarine.com