bilge pump question

[Kracker Jack]

my mind is constantly thinking of ways to consolidate on knick knacks on the boat. So I have a bilge pump question. Can I put a T fitting from 2 bilges to 1 thru -hull? or will the one bilge pump thats running pump some water reverse into the other bilge that is not working? Im trying to get away with only having 1 thru-hull fitting for 2 pumps. I realize that this is a pretty stupid question but Im just curious.

[reelapeelin]

Originally Posted by Kracker Jack

my mind is constantly thinking of ways to consolidate on knick knacks on the boat. So I have a bilge pump question. Can I put a T fitting from 2 bilges to 1 thru -hull? or will the one bilge pump thats running pump some water reverse into the other bilge that is not working? Im trying to get away with only having 1 thru-hull fitting for 2 pumps. I realize that this is a pretty stupid question but Im just curious.

Sounds like a good question to me...I would imagine if you got two 1" hoses flowing into one 2" hose it would flow properly...and keep in mind a hose runnin out of each side will work also...instead of having two fittings on one side...

[Kracker Jack]

Another question related to bilge pumps. Are Johnson bilge pumps worth a crap? they are selling 2200gph johnson pumps on Ebay for 80.00 dollars. Thats alot of pump for 80 bucks.

Thanks for the help REEL.

[macojoe]

I just got my 2 new pumps in today, no hose as of yet, but was thinking about same thing? But my thought would be that the water being pumped out would come back thur the pump thats not pumping at that time?? Which means ihave to put two new thur hulls in and my boat has 3 already for two old pumps that i am leaving in, one small 500 in front and one small 700 in rear. The two new ones are 1100 auto's, i will use the 2 smaller ones for manual when needed, auto's for when on the mooring.
But after getting these 2 Rule pumps and installing them they kept coming on every few min? Instructions say they come on every 2 min for like 2 seconds looking for water, if no water they shut off if there get water they stay on till its gone? Thats ok i guess but i don't want the battery going dead looking for water? This is so there isno float switch to get stuck, they say??

[phatdaddy]

i have seem some that work of off amperage. a pump pumping water will pull more amps than one that is dry. if the amps are low it will shut back down, if they are high, it will pump umtil the amp load drops.

i think you would be better off giving each pump its own outlet. if you are in a situation where you are having to use multiple bilge pumps, you probably want to get as much water out of the hull as possible. i think combining outlets would cut down on the capabilities of both pumps.

[macojoe]

I have decided to put switches on my pumps to be able to shut them off while not in water, then leave on when on the mooring, seeing that i am only going to use the mooring 3 days a week during Bass season.

[tartuffe]

A 1" thru hull has an area of .78 square inches. Two 1" thru hulls will be 1.56 square inches. A 2" through hull is 3.14 square inches or the equivalent of (4) 1" thru hulls..