Scupper vs one way valve

Big Kahuna

Administrator
Location
Tuscaloosa, AL
Never leave a ski (standup) floating regardless of scupper or oneway......... they have a habbit of sinking...... Water will flow up the exhuast tube and fill the waterbox!!!!!!!!!!!!!
 

SUPERJET-113

GASKETS FOR CHAMP BRAP!
It just grey pvc with home depot valve up inside about halfway and scupper flange/flapper on the back of the ski. I just did it for double protection and since i had the ski cut open for footholds it was they way to go.
 

orange flattop freestyler

The Carlsberg ski
Location
Essex UK
Not all one ways are small and ugly,

This is an ATP through hull bilge, designed to be a mirror image of the standard superjet exhaust.

2" pipework all the way through means it empty's faster than my wallet does when the girlfried get hold of it :)

pump.jpg
 

orange flattop freestyler

The Carlsberg ski
Location
Essex UK
Works really well actually, ive often tied my ski up and left it long enough for me to get a cup of tea or a beer and sit with the lads for a break and it hardly leaks at all.

It empty's the ski faster than anythin else ive seen too. Its billet construction means it wont break when landing from big jumps (well hasnt broke yet!)

Personally i think it looks dead cool too
 

SJBrit

Extraordinary Alien
Location
Bradenton, FL
bigkahuna said:
Never leave a ski (standup) floating regardless of scupper or oneway......... they have a habbit of sinking...... Water will flow up the exhuast tube and fill the waterbox!!!!!!!!!!!!!

Really? Even with the exhaust tube up high like it is?
 

Waste Land

Non Multa Sed Multum
Location
Florence, AL
Gainera2582 said:
Thanks guys for the responses so far. This is just an idea, but me and luke talked about it: What about a one way valve with a scupper flap(say 24/7), would it work?
Dont see a reason why not.
 

Waste Land

Non Multa Sed Multum
Location
Florence, AL
SUPERJET-113 said:
Thats what i have!
Only one on each side of the ski and my exhaust goes out the right rear side.:wink:

Sounds cool. It protects the one way but doesnt leak like a scupper. Why didnt you bring this up in the past 113?
 
bigkahuna said:
Never leave a ski (standup) floating regardless of scupper or oneway......... they have a habbit of sinking...... Water will flow up the exhuast tube and fill the waterbox!!!!!!!!!!!!!


?????

never heard of that one before. itd have to be a damn big waterbox to take down an entire ski!
 

LBE

Eddie Would Go.
Location
Charlotte, NC
I'm running the Home depot scupper and mounted it on the firewall end. When it sites there is always enough pressure to keep it from leaking couse ther is a whole tube of water pushing against the flap, unlike the Blowsion one mounted at the rear. Mone doesnt seem to leak at all. and I think when mounted at the rear it takes a lot more abuse.

That thing is in good, if it ever goes out, I'm just gonna screw a 24/7 valve on it.

BIgKahuna, what are you talking about??? The exhaust tube travels at an upward angle so when it comes into the ski it is above the water line. Water will equalize in the tube, but will not travel up farther than the bond line/waterline. If your ski is sinking like this, you have a bigger problem.
 
Y

yamaslut

Guest
Lowes 2" sump dump drain valve.... the cheapest and most effective solution IMO
 
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