Has anyone used a Y shaped fitting for dual bilges?

SuperjetSteve

SuperjetSteve

Go Big or Go Home
Location
Macomb michigan
I thought about it and instead of having 2 holes just make one and use a Y fitting for the hoses to connect to and go out one hole? anyone try?
 

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2lick

2lick

Brap!!!
Location
Limerick, PA
make sure the necked down part is bigger.... have to be able to get two pumps worth of water thought one hole now.... also most outlets are 3/4 youl have to look around the market for a bigger one... maybe try boating places....

it would work thought.. i guess....
 
Proformance1

Proformance1

Liquid Insanity
Site Supporter
Vendor Account
Location
New York Crew
I was thinking about the same thing last week, but decided to just put in another thru fitting. The one bilge may kick on and just take the path of least resistance, which on a ski is not a big deal, but you would really need two check valves in this to make sure that you weren't just pumping from one bilge to the other.
 
S

sflsurfrider

ive thought about this before. you should be fine with one bilge fitting because i doubt that 1 or even 2 pumps is pumping the capacity of an orifice the size of a typical bilge outlet.

another advantage may be one pump might prime another when it gets airlocked.
 
FLY6584

FLY6584

Location
Clearwater, FL
sflsurfrider said:
ive thought about this before. you should be fine with one bilge fitting because i doubt that 1 or even 2 pumps is pumping the capacity of an orifice the size of a typical bilge outlet.

another advantage may be one pump might prime another when it gets airlocked.
Click to expand...

Yeah, but without check valves both pumps have to be running at the same time.
 
S

sflsurfrider

FLY6584 said:
Yeah, but without check valves both pumps have to be running at the same time.
Click to expand...

why wouldnt they both be running anyway?? (unless theyre on independant float switches)

id put the T as close to the bilge outlet as possible.

actually, id just run two bilge pump outlets.
 
THRUST

THRUST

ThrustInnovations.com
Location
royal palm beach florida
run the fiitings in the holes were the choke and fuel sitch were or still are that way you dont make any new holes in the hole . and my bilge pumps always seem to fill the capacity of the orfice .
 
hangtime

hangtime

Speak up ,don't kiss azz
Location
WORCESTER,MASS- HAMPTON N.H.
I don't think it would get as much water out as with 2 fittings .
I know my Attwood 750's throw water about 7 ft to the side of my boat and don't think that having 1 outlet would be the same flow
 
Snackem

Snackem

Danger Zone
Location
Colfax WA
I don't see why one fitting wouldn't work? If you have a check valve on each side of the Y you should be ok. I'd also want to make sure that the fitting could handle the flow that would be required. I plan on doing something similar to this when I put my two 500's in.
 
MADMAT

MADMAT

Location
Ohio
I'm hooked on the 1100GPH rule with the billet bracket and the huge pisser/hose combo.

You just have to trim away some of the coupler cover and you have to bend the billet bracket a little bit.

Very clean and efficient set up.
 
douglee25

douglee25

m3booooy
Location
South Jersey
Based on a V500 Attwood pump, open flow for say 3ft. of head (lift in this case) is about 350 GPH. If you have dual pumps, this equates to 700 GPH. Converting this to GPM gives you 11.6 GPM. Going to a flow chart, a 3/4" pipe at lenth 20ft and a supplied pressure of 10 psi will flow 22 GPM. At 20 psi, it will flow 30 GPM. Even at a measly 5 psi supply pressue, a 3/4" pipe will flow 18 GPM.

In conclusion, a single 3/4" thru hull fitting should have no problem flowing from two pumps.

Doug
 
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