I have a 16ft Lowe. The bilge pump disharge hole is located very near the waterline and when someone is fishing on the back deck on the side where the discharge is, the discharge hole goes below the waterline. Water then backfeeds through the pump and starts to fill the bilge with water. Has anyone come across a check valve, or other solution that could be inserted into the bilge tubing to prevent this?

I had that problem with an old boat that. I looked and looked but could not find a check valve. What I ended up doing was making a loop in the hose that went up above the hole before it attached to the through hull fitting.

post up some pictures and i will check some web sites i know for your problem. maybe i can help

I found a well pump check valve at Lowes and it seems to work.  I put the hose up to it and no water backfeeding in.  I also filled the bilge with water to make sure the pump could still pump out-OK.  Will give it the test on the water this weekend.

I was wondering on where you installed the check valve? reason why cause i was thinking about doing one too.

A. up close to the bulk head

B. Mid-section on hose

C. down close by the pump

D. somewhere else on hose

The reason I'm going through all this is cause If one would hook the checkvalve anywhere else, there would be back water all the way down to where you installed the valve. which in turn you would have water all the time stuck in there. Now if that was the case would the pump be able flush it out?

You may want to reconsider the back flow valve.  It will most likley put alot of strain on your pump.  The loop in the hose would be the better solution if it is possible.  Was this pump installed by the factory or aftermarket?  

Good Luck,

TD

I was wondering on where you installed the check valve? reason why cause i was thinking about doing one too.

A. up close to the bulk head

B. Mid-section on hose

C. down close by the pump

D. somewhere else on hose

The reason I'm going through all this is cause If one would hook the checkvalve anywhere else, there would be back water all the way down to where you installed the valve. which in turn you would have water all the time stuck in there. Now if that was the case would the pump be able flush it out?

I installed it about 1 ft from the bulkhead. Its horizontal or a little downhill to the bulkhead so no water should stay between the check valve and the bulkhead. On the valve it states it takes 1/2 psi to open the valve so I'm hoping it doesn't overwork the pump. When I checked to see if the pump would still pump water out of the bilge by filling the bilge with hose water, it seemed to work fine.

Mike,

 You may also want to get a plug that will fit the discharge hole so that if your pump fails you can plug the hole so no water can come in.

TD

Mike,

You may also want to get a plug that will fit the discharge hole so that if your pump fails you can plug the hole so no water can come in.

TD

I've got one.  Thanks for the heads up

Just to let you know if you find out that checkvalve isn't working out for you for one way or another. I know another type that would work better then that spring type. (hence no psi required).