one way valve/scupper
- Thread starter vaught234
- Start date
- Location
- Braapp factory
basically a 2" pipe bored from inside the engine compartment to the outside of the hull (usually at the back but sometimes into pump area) with a one way flap on the back. Any water getting into the engine compartment very quickly exits as you accelerate away - this coupled with an electric bilge pump gives a great set up.
However, the valves often dont seal completely allowing water to leak back in when the ski is at rest - or more worryingly whn the ski is upside down (particularly in the sea) any water entering the engine compartment quickly displaces the air out of the scupper - maybe leading to ski getting swamped quicker, for this reason there is a division between people who swear by them and people who loath them.
Usually flatwater freestylers use them , sea or ocean riders dont.
I ride on both lakes and in the sea, and personally have 2 x 3" scuppers and a 500 GPH elec bilge and have had no problems to date.
However, the valves often dont seal completely allowing water to leak back in when the ski is at rest - or more worryingly whn the ski is upside down (particularly in the sea) any water entering the engine compartment quickly displaces the air out of the scupper - maybe leading to ski getting swamped quicker, for this reason there is a division between people who swear by them and people who loath them.
Usually flatwater freestylers use them , sea or ocean riders dont.
I ride on both lakes and in the sea, and personally have 2 x 3" scuppers and a 500 GPH elec bilge and have had no problems to date.
SJBrit
Extraordinary Alien
- Location
- Bradenton, FL
There is a variation where you use a one way valve that you can find in the plumbing section of the hardware store. These can seal more reliably than the type that have a flap valve at the rear (usually the one way valve is mounted further inside the hull).
- Location
- Raleigh NC\Lake Jordan
i would do it, and if you dont like it or you find water is entering your hull, you can block it off with a simple 2inch pipe plug you can buy from the hardware store.
SJBrit
Extraordinary Alien
- Location
- Bradenton, FL
Vaught - what kind of riding do you do? I'm guessing flatwater there in Missouri, right? If you want to get into freestyle without bent rods, I think a scupper or one-way is a must, along with a backup electric bilge pump. I doubt many on here would disagree. You'll be under water a lot, and you need a way to get it out of your engine compartment, fast.
One thing to remember also is that you need to take a look at ways to reduce the water flow into the engine compartment in the first place. I assume you have a Superjet since you posted in that section. Does it have a stock hood?
One thing to remember also is that you need to take a look at ways to reduce the water flow into the engine compartment in the first place. I assume you have a Superjet since you posted in that section. Does it have a stock hood?
SJBrit
Extraordinary Alien
- Location
- Bradenton, FL
Good deal. Sounds like you're all set.
rehak2
Here we go again!
- Location
- Lino Lakes,MN
IMO I had the best luck with the ones from blowsion. The blowsion one I had did not leak at all. The homemade ones suck...My flapper in the one way broke off after the first ride .
SJBrit
Extraordinary Alien
- Location
- Bradenton, FL
Mine's been in there for 4 years - still works fine, and no leaking. Home Depot one way valve.