What about this???

[Dilligaf]

question for everyone. if your could buy flapper type scuppers in the same diameter as thru HULLS and place the flapper on the bottom of the boat wouldnt that work stopping water comeing in but still let it go out? its gotta work right???

[bigeasy1]

I've pondered the same question,and searched and searched all the scupper questions on this site and others,but with no luck.
I think the flappers are made to work better when semi horizontal,not straight vertical.

When they are in a somewhat vertical position,the rubber flapper,hangs fairly straight,and has a natural tendency to easily swing closed with a slight amount of back pressure from the water.

If you place it on a vertical plane,it's going to always want to hang open.I,m thinking that if it opens too much. water pressure will not be acting on the face of the flapper,but only on the edge,making it difficult to work the way it's designed too.
Of course like many things I've thought,I could be completely wrong.

I'm going to try using the VORTEX thingy,I tried them out on a two liter soda bottle,and they work great.

How much water enters your boat through the floor scuppers?I have the same exact boat as you,and haven't splashed it yet so i have no experience with the water problem.

[BillPutney]

I have a 78 i/o CC that was converted to a outboard on a bracket.No matter what speed I run water gushes in the floor drains.When I'm running 30 + Mph it looks like a fountain at a Vegas casino.When the boat is stationary with the plugs out if I stand at the helm no problem , the slightest move towards the rear or either side will start the inward flow.

[Tarpun]

WWP2, water should drain out anytime you are running. On my 20' at 30mph the scuppers literally vacuum the water out. No way you should have a fountain effect at that speed. What do the scuppers look like on the hull bottom?

[BillPutney]

I have the recessed pocket with a slight ramp directly in front of the drains. it looks as if it should create a suction and suck the water out but it doesn't.I'm going offshore this weekend , wahoo - king's and mahi in great numbers according to friends and the fishing reports online. I will pull the plugs and photograph the fountains at speed and post online.

[McGillicuddy]

Fountains, huh... Wee bit odd, I think. What motor and bracket do you have mounted? sounds like you have way to much weight aft. Are you riding pretty bow high? Not sure I understand the recess of those little wedges in front of the scupper tubes... almost sounds like they're on backwards creating a pickup scoop...love to see a picture of that, too. Good luck with the fishing!

[BillPutney]

armstrong bracket Suzuki 225 2-stroke EFI , Believe me it is very disheartening to have to keep the plugs in as I have been aboard a friends boat that got pitched back on it's transom when a 8 to 10 ft. wave lifted the bow and stood us vertical , when I lokked to the back of the boat there was no motor and 1 1/2 to 2 ft. of the transom completely awash in white water , when the bow settled all the water washed forward and the next wave lifted the bow and washed everything inside out thru the cutout for the outboard. No one onbaoard said a word for several minutes.I quickly thought about my boat and what would have happened with my setup.Would the water have not washed in due to the closed in transom , there is no way that amount of water would not have swamped my boat . The fellow who owned the boat immediately sold the boat and his beach cottage he was so scared.It was a combination of wind and tide and a non maintained inlet. Between the waves ther was maybe 1 1/2 ft. of water along with the fact that as the wave broke the captain completely backed off the throttle.

[BillPutney]

Mcgillycuddy there are several pics of my boat in the photo section under first try pics 8/24/08.

[Capt Chuck]

I have a 78 i/o CC that was converted to a outboard on a bracket.No matter what speed I run water gushes in the floor drains.When I'm running 30 + Mph it looks like a fountain at a Vegas casino.When the boat is stationary with the plugs out if I stand at the helm no problem , the slightest move towards the rear or either side will start the inward flow.

WWP2
Something is not Kosher here
I have almost the same setup. Being a previous i/o should not make a difference. Before my transom inclose the only time water might have come back up the floor scuppers was at anchor with two or more guys at the transom on one side. Now with the bracket, I get NO water. My scuppers have always exited thru the transom even thou the mold has the indents where the previous years the water exited straight down. For some reason it appears you might have excessive weight aft causing your gushers. Have you checked the bracket chamber for a leak that has filled it with water?.

I think having your scuppers exit aft out the transom might solve these issues.
You also could criss cross the drains out the transom with PVC pipe. (Port scupper drains out the transom Stbd side & Starbrd scupper drains aft out the port side)
I would like to see more pics (ex. Battery & gas tank location, baitwell, inside the transom showing the scupper drains and how your boat is sitting in the water etc.)
Lets see if we can find your weight culpret...

Here is an inside shot of my floor drains (prior to the inclose/bracket install) exiting out the transom. Notice that the drains make a 90* before going thru the floor (right side of picture)and then straight out the transom. (Disregard the "T" piece as that was a drain for a floor hatch that was tied in after)


This shot shows the location of the old drain (above pic)vs the new scupper drain location. Much higher after considering the bracket flotation.




Finished


Sitting in the water. Notice the scuppers are above the water line

[BillPutney]

Capt. Chuck I have 2 batteries that sit within about 3 in. of the rear of the main tank,they sit about 18 in. apart or equidistant from the center line.This is slightly forward of the front of the old engine compartment I believe. There is no live well. We added a 20 gal. rear tank made of Alum. that sits about 5 in. from the transom under the rearward ssection of the engine compartment.I have never put fuel in it because of my concern for the weight at the rear .That was my brother's idea.We cut out the top of the transom and added a stg/fishbox compartment made out of King Starboard.This rarely has anything in it other thn an Extra gal. of oil. We also added a custom fitted tank in front of the cabin where there used to be a floor stg. area .About 38 gals. that I always keep full , I try to run off the main tank to burn off the most rearward weight. Sitting at rest the boat is low in the rear . I will try to get some pic's up so you can see . It does sit low in the rear even with no one on board .I have an old picture from the floppy disk camera days that I'll post. Thank's for the interest.