2 bilge hoses into one?

got 2 attwoods, and dont really feel like drilling another hole since i already have one cant i just T both lines together into one?
 

Mouthfulloflake

ISJWTA member #2
Location
NW Arkansas
sure you can do that, but you effectively reduce the capacity of each pump.

if you only have one hole, just run one bilge, it will be indeterminably as effective, compared to 2 bilges TEE-d to one outlet.

Or, drill another hole.
 

CoreyLKN

LKN Freestyle Militia
Location
Lake norman, nc
You could but since the bilge line and outlet are 3/4", you would have to get a T that was like one that combined the 2 lines and then had one big line which is like 1 and 1/2 inches and you would have to have a bigger outlet too...WAY to COMPLICATED..Just cut 2 holes.
 

#ZERO

Beach Bum
Location
Florida - U.S.A.
Just use one pump and the stock bilge and you won't have to drill another hole.

I wouldn't really recommend using a T-Fitting because if one pump gives out the water may backflow through the other dead bilge pump.
 
Thats not even true. If the lines are 3/4" which they are and you want to tee them you just need to add them to a pipe that has the same cross sectional area to get the same flow. Area of one 3/4" pipe is .4418 in^2. So the area of 2 is just .8836 in^2. A 1 inch pipe has a cross sectional area of .7854 in^2. Because of the way fluid flows in the pipe there is less restriction in a bigger pipe. Ill bet a 1 inch pipe will flow just as well as 2 3/4" pipes. Especially if you t them into a solid piece of pvc or something. Most of the bilge pipes are flexible and also restrict flow.
 
well i dont have a stock bilge on the ski, so what about running one bilge to the side and one into the pump like the stock bilge?
 
just drilll 2 holes ..its only one more than one

lol one more than one thats ghay! :smile: ill probably do that, but why not run one into the pump where the stock ones goes? or actually that might be a bad idea because the hole is to small.. gosh!! i might have to run 2 holes...
 

#ZERO

Beach Bum
Location
Florida - U.S.A.
well i dont have a stock bilge on the ski, so what about running one bilge to the side and one into the pump like the stock bilge?
You can run one pump through the stock bilge but they're a few reasons not too. The stock hose is 3/8" and your bilge probably 3/4" hose. Also you have to use the stock siphon hose or you will sink the ski. The stock plastic elbow siphon break fitting has a real small pin hole, so if the pump is under pressure it will squirt a small amount of water inside your ski.
 
You can run one pump through the stock bilge but they're a few reasons not too. The stock hose is 3/8" and your bilge probably 3/4" hose. Also you have to use the stock siphon hose or you will sink the ski. The stock plastic elbow siphon break fitting has a real small pin hole, so if the pump is under pressure it will squirt a small amount of water inside your ski.

no i didnt mean "thought" the stock bilge, because i dont have one, i meant, one of the line that the stock bilge used when it was there. One lines comes from the pump and goes into the head and the other line goes into the pump from the stock bilge doesnt it?

here is what i mean, on the left side thats a water filter, and on the right side it was blocked off and nothing was connected because it was replaced with a RULE bigle pump, instead ill put the RULE on my 99 SJ and on this one ill put twin Attwoods.

emptyhull.jpg
 

#ZERO

Beach Bum
Location
Florida - U.S.A.
You need to get rid of that black plastic elbow fitting on the end of your stock bilge line. They have a small pin hole in them for the siphon break and it will leak water into the ski. Install another 3/8" vacuum cap or modify your pump for dual cooling.
 

Danny Kay

SJ + M3 = awesomeness :)
Location
Atlanta
i did two holes. But wammer or blowsion sells a thru hull rated at 1100gph..just fyi.. that would be ur single hole easy solution.
 
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