Who makes a scupper that does NOT leak back into the ski......?

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
keeping water out of the engine compartment is a good idea Matt, but it's not going to happen...lol the whole idea with installing scupper valves is to eliminate the need for bilge pumps draining the battery, and when you're running a total loss system added with a bilge pump, or dual bilge pumps for that matter, combined they will kill a battery, fast. Although, some people will bilge pumps and scuppers at the same time. :dunno:


what do you mean by "air leakage"?

Really?
I have run several total loss systems over the years, always with dual 500 GPH bilge pumps running, and the battery was good for at least four tanks.
Not buying the bilge pump argument :veryhappy:
 

SXR-FOREVER

Finally Flippin
I'll never run a ski WITHOUT a oneway/scupper. I love my xmetal and my dual bilges. I go underwater off stabs, subs, fountains, failed backies and rolls to keep my engine bay dry.

I've used the blowsion and homedepot which dont compare to the xmetal at all which I am using now...it leaks, but hardly at all.
 

the WaTeRhAwK

fryin' up a/m electrics..
Location
okc
Really?
I have run several total loss systems over the years, always with dual 500 GPH bilge pumps running, and the battery was good for at least four tanks.
Not buying the bilge pump argument :veryhappy:

I'm not "arguing" with you, just saying. :veryhappy:
 

Big Kahuna

Administrator
Location
Tuscaloosa, AL
keeping water out of the engine compartment is a good idea Matt, but it's not going to happen...lol the whole idea with installing scupper valves is to eliminate the need for bilge pumps draining the battery, and when you're running a total loss system added with a bilge pump, or dual bilge pumps for that matter, combined they will kill a battery, fast. Although, some people will bilge pumps and scuppers at the same time. :dunno:


what do you mean by "air leakage"?

Cannot believe I am doing this.

Travis, if you have a scupper and no bilge pumps, you are asking for trouble. I have dual 500's and dual scuppers. If I did not have the bilges then my ski would be on the bottom in about 2-5 minutes. FACT. If I pulled it to the bank, I would have to pull the tail out of the water completely every time. Stopping to float, would never happen. If you loose the ski, by the time you get to it you will have water in the hull, what happens if the ski will not fire up? Guess what, your ski may very well be on the bottom or bobbing up and down for a long time.


When a SJ is upside down, this happens when toss a ski in the surf, the air will literally blow out the scupper very fast, guess what happens next. The ski sinks, this is really bad in big surf.
 

SuperJETT

So long and thanks for all the fish
Location
none
Scuppers have nothing to do with battery usage to me, they are to quickly drain the engine compartment after a trick so you can do another. It used to be a big deal and still is if you compete or perform in shows where you're doing subs/etc but for a lot of riders nowadays they are more trouble than they're worth.
 
Im not a fan of scuppers, but I do think the xft recessed style is one of the best designed. Because its recessed, it holds water in the recess which holds the scupper shut. I run versiplugs, but they dont drain water that fast.
 

Big Kahuna

Administrator
Location
Tuscaloosa, AL
I am very tempeded to plug one of mine now. I could use the kind you pump up with air. The round compression ones will not work, when Wammer installed these he actually heated up the tubes to contour to the bottom of the hull. I tell you, Paying wammer to do something like this would be worth it. He does the work right. I will testify to it based off my hull being 7 years old when I checked the foam. DRY
 

the WaTeRhAwK

fryin' up a/m electrics..
Location
okc
Cannot believe I am doing this.

Travis, if you have a scupper and no bilge pumps, you are asking for trouble. I have dual 500's and dual scuppers. If I did not have the bilges then my ski would be on the bottom in about 2-5 minutes. FACT. If I pulled it to the bank, I would have to pull the tail out of the water completely every time. Stopping to float, would never happen. If you loose the ski, by the time you get to it you will have water in the hull, what happens if the ski will not fire up? Guess what, your ski may very well be on the bottom or bobbing up and down for a long time.


When a SJ is upside down, this happens when toss a ski in the surf, the air will literally blow out the scupper very fast, guess what happens next. The ski sinks, this is really bad in big surf.
that's why you want to run 2 or three valves in-line, and not just one. you could install the center one upside down, to where when the ski is upside down it will function normally. :dunno:
 

vitaly

Анархия - мать порядка!
Location
NY/NJ
Any scupper works.
Just don't forget about this critical part just in case:
 

Attachments

  • cork.jpg
    cork.jpg
    27.3 KB · Views: 19
Thanx for all the great replys! I am already running dual 500's.... For now I think I will just stick with those. From what I am hearing they are more trouble than they are worth.....I just wish I could find a switch that wasn't a pile of $hit !!!
 

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
A lot of people have good luck with the Blowsion handle-bar mounted switch.
I have been using the same mil-spec toggle switch from JSS for 4-5 years now. I think McMasterCarr sells them, too.
 

JetManiac

Stoked
Site Supporter
Vendor Account
Location
orlando
Thanx for all the great replys! I am already running dual 500's.... For now I think I will just stick with those. From what I am hearing they are more trouble than they are worth.....I just wish I could find a switch that wasn't a pile of $hit !!!

It is expensive, but you can mount it anywhere and is milspec rated for continuous water immersion. Not to be confused with the Hot Products, Blowsion, etc. one that looks similiar but totally different design.

McMaster-Carr PN: 6944K12

http://www.mcmaster.com/#momentary-pendant-switches/=7s1dom
 
Last edited:

the WaTeRhAwK

fryin' up a/m electrics..
Location
okc
not very long at all. when the ski is upside down, the valve flapper inside the one-way valve falls open and lets water in. that's why I suggested two or three valves in-line, with one of them positioned upside down to the other one or two. that way it will function normally at keeping water out while the other one or two are dropped open, until the ski is righted.
 

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
when the ski is upside down, the valve flapper inside the one-way valve falls open and lets water in.

No, it does not. That is not the issue.
With the boat upside down, air pressure inside the ski will open the valve/scupper and escape, thus allowing ever more water into the hull.
It doesn't let water in - it lets air out.

(Perhaps with a worn out scupper, gravity is a contributing factor)
 
Last edited:
Top Bottom