SCUPPERS SCUPPERS SCUPPERS!!!!!I need your help!
 

I have come to the experts. The best of the best.

I posted my problem on The Hull Truth....Nobody would touch it with a 10 foot pole.

http://www.thehulltruth.com/boating-...ication.html#b

I posted on the Sea Hunt owners group. No concrete responses.

http://seahuntownersgroup.yuku.com/t...VING-ME-INSANE

Its time to get serious. Video here:

http://www.youtube.com/wa...5n1ae4I&feature=youtu.be

I own a Sea Hunt BX 22 with scuppers that are horizontal and is terribly slow to drain. I want install scuppers that are vertical like the ones from TH marine. Any tips?

http://a2.sphotos.ak.fbcdn.net/hphot..._1471825_n.jpg

Have you contacted Sea Hunt about this issue? They might be able to give you some suggestions. The vertical placement seems to be contributing to your problem, and I wonder what size your drain hoses are? I have two boats with floor drains and they drain freely. Do you have access to your drain lines? I would write to Sea Hunt @ 2348 Shop Road, Columbia, S.C. 29201 or call them @803.755.6539 and get their input on the problem. If they can't help, then I'd start thinking about alternate solutions. Additionally, Is it possible that you have some debris clogging the drain hoses? I would flush each line out with a garden hose held right up against the drain and see if you clear any debris out. I do it a couple of times a season because of leaves or other small debris that find their way past the scuppers.

The key to the good performance of the vertical SeaCraft scuppers is a wedge thats about 1/4" tall right in front of the scupper outlet, shown in picture below. It creates a significant amount of suction that really pulls the water out when you're up on plane. I suspect the aeration created by the adjacent vertical step between the center and outer panel of the variable deadrise hull also helps.

Second shot shows the aeration that reduces drag and makes these hulls so soft riding!

Thank you. Do you have a picture from your cockpit? Did you create the pad just for your scupper drain?

If you're talking about that wedge on the bottom, no, SeaCraft's came from the factory like that.

There was a wood block installed between the hull and inner liner where the scuppers are. The brass tubes eventually corrode and start to leak, causing the wood to rot. Here's a couple of shots from the top I took when I repaired mine. I installed a pvc/wood dowel from the bottom to create a plug, filled the hole with thickened epoxy, redrilled the hole and then replaced the brass tube. There is a well about 3" across and 1" deep (2-3" deep in later models with raised decks) in each corner of the cockpit where the scupper tubes are located. You could probably create a more durable version of the same thing using a bronze or Marelon thru-hull fitting. But the wedge on the bottom in front of the outlet is the key to creating a lot of suction!

Bushwack. Thanks for the inspiration!!!

So I am kicking a few ideas around. I still need to determine if I should close off the old scuppers or leave them be. Of course if I close them off it will be a little more work fiberglassing.

I like your idea going straight down with drain pipe and not using hose.

I just have to find a spot in the cockpit run it thru. I have box stringers whch are about 6" wide so I dont want to drill thru those.

Littletunny,
I don't think Bushwhacker was actually recommending vertical scuppers. :confused:
Vertical scuppers are only good underway.

I would suggest you take a closer look at your problem. First determine why they drain slow. Diameter of drain tubing? Is tubing flange elevated causing water to exit uphill? What is height of floor in relation to waterline? Where do transom scuppers drain in relation to floor and waterline, etc...

Assuming the angle of egress is favorable, I would consider changing the size of the tubing and fittings and putting ping pong ball scuppers on the transom to keep water from coming in from the aft end. If the drains prove to be running uphill, change that angle. A factory error in that regard is very possible...

If you're concerned about self-bailing at rest, Gillie's right, the scuppers out the back with the ping-pong ball check valves work well, although debris can keep the balls from sealing.

However, if you're worried about quickly removing a large volume of water from taking a wave over the bow in what may be a boat with low freeboard (maybe a flats boat?!), I think the suction in the vertical SeaCraft type scuppers with the wedge forward of the exit will beat gravity every time! The SeaCraft scuppers are about 1" ID; going larger would also help. And if you go with vertical scuppers, make sure you can get rubber plugs for them, because you need the plugs unless your deck is several inches above the waterline!

This is something that butters my biscuits. Having fished on some commercial boats, I always shake my head in dismay when I look at new "small craft" and think to myself.....have any of your designers EVER taken green water in a small boat? Really, you think those scuppers are gonna save my bacon?

I don`t see scuppers on Wagons, I see CULVERTS. Things that can actually move water. What a concept.

As Gillie said, you must determine if they have a proper angle to allow gravity to slowly do its job.

Do you have water coming in at rest?

With 1 or two in the corner?

Do you have a heavy motah on the back?

We need more intel.

Do you have corrugated scupper lines or smooth hose?

Do you have flappers?

Have you called the factory?

I have thought about puttin` big honkin` oval scuppers in my rig.

Cheers,
GFS

"I have thought about puttin` big honkin` oval scuppers in my rig"

Hummm........Sandy, I'm thinking 3"x 6" oval would do the trick. Don't want to go too big because the bugs you catch and toss in the boat from your super secret lobster spots, while using your new Lloyd Bridges approved scuba gear, would slip right back out through the scuppers. :)

I`m building a Hedonism resort for them. Bugz check in, but they dont check out.

Bud, get the launch.

Don't worry we'll leave the light on for ya!

Wow thanks for the responses! I though you guys had given up on me.

The boat is a Sea Hunt BX22 with a F150 stroke so its not rated for maximum HP which I believe is 200 or 250 HP.

As you can see in the video the thru hull exit is right at the boot stripe which depending on where someone is standing may or may not be underwater.

There is not much elevation difference between the existing thru hull and the existing horizontal scupper. Bottom line is there is nothing in that configuration I wish to reuse. It will be used to augment my scupper modification.

This is what a figured out and what someone else told me - Basically horizontal scuppers (the kind that I have only work at their FULL capacity when the water level is about the top lip, which is a lot of water in my case.

However vertical scuppers always work at the full capacity as long as the lip is below the draining water which is always the case.

Its all about water levels and equilibrium. I probably have 3 inches between my deck and the water level outside the boat. But as long as i have some distance there, the water will still drain with vertical scuppers.

I dont mind wet feet and get that now anyway. water can come in and water can go, but when I go (hit the throttle) I want the water gone and crud with it.

So after looking at tons of 90 degree vertical scuppers, none are going to work since I am hampered by clearance underneath where the scupper would go. Right now I am sizing out pvc for some sort of the custom fit. The discharge would be a new thrull hull on the bottom of the boat.

I am thinking of something liek this. The L piece on the right but I got to figure a way to keep it snug with the deck and I wish the wall thickness was a little better.

http://www.hammerzone.com/archives/k...sink_drain.jpg

Well water does always seek level. Have you thought about plumbing extra drains with check valves to the motorwell and adding drains to the transom at the motorwell and leaving your current configuration intact. If the depth of the inside of the motorwell and floor make sense I'd be leaning that direction myself. Then again without standing in your boat in the water and with a tape measurer I could be completely wrong.

Ok guys. Found something today at HD that may work. I will shave the lip down to the taper.

http://i88.photobucket.com/albums/k1...y/IMAG0200.jpg

http://i88.photobucket.com/albums/k1...y/IMAG0199.jpg

looking from the center of the boat to the starboard side at the non working horizontal scupper:

http://i88.photobucket.com/albums/k1...y/IMAG0193.jpg

Same scupper looking aft.

http://i88.photobucket.com/albums/k1...y/IMAG0197.jpg

The new drain will go directly under the existing drain:

http://i88.photobucket.com/albums/k1...y/IMAG0201.jpg

The pad at the stern where the new thru hull will go:

http://i88.photobucket.com/albums/k1...y/IMAG0192.jpg

Take that cheap ass crap back where you bought it.

^ I ended up not using the sink drain kit. The fittings in my last post are schedule 40 PVC. What do you think?

Sandy, if your going to be a serious writer you must play nice for the first two e- books, poems, articles...:p (did you buy the race boat - come snapper killa, yet)

LT, I have no problem with the pvc or the bigger diameter; but why not stick with you're initial thought and go straight out the side instead of running tube aft to the old drain. After seeing your viddy and realizing your scuppers drained out the side i realized you simply have too many turns in the plumbing; and if the knuckleheads at sea hunt used sealant, then that much more flow loss can be expected. Assuming you can reach both ends (I know it's a stretch) plug old holes and have real scuppers (like Sandy's previously mentioned ovals) just fore of the old that shoots straight out.

That rig is still chasing my dreams.

No crap=everyone comes home.

The kinder GFS

I`ve been rightly called Kevorkian.

The cutting has begun. Pics to follow