Bilge issue

[Jhayes780]

Hello,

So my bilge pump worked great when installed but now it only sends water like 3/4 the way down the tube. If I take a hose and put it on the hole that it shoots the water out of and run some water through it it works, how do I fix this

 

[dingbat]

Hello,

So my bilge pump worked great when installed but now it only sends water like 3/4 the way down the tube. If I take a hose and put it on the hole that it shoots the water out of and run some water through it it works, how do I fix this

Sound like your air locked.

Line runs upwards to outlet w/o flat spots in the line?
Do you have an upward loop (trap) in the line running between the pump and the outlet?

 

[Jhayes780]

Yeah there are a couple flat spots, but no I don’t have a loop trap? Should I put one in and where?

 

[airshot]

Depends on the type of bilge pump you have, if not self priming then no loop, but if you have a self priming pump then a loop closer to the outlet..reason for the upper loop is to keep spray water from outside, going into the bilge. On a non self priming pump, that loop can create an air lock as shown in the posted video

 

[Bondo]

Hello,

So my bilge pump worked great when installed but now it only sends water like 3/4 the way down the tube. If I take a hose and put it on the hole that it shoots the water out of and run some water through it it works, how do I fix this

Ayuh,..... Have you pulled it, 'n cleaned it,..??

 

[Jhayes780]

Ayuh,..... Have you pulled it, 'n cleaned it,..??

Yes

 

[Grub54891]

Then it could be just wearing out and not running as fast as it should. Or is there a check valve in the pump/line that’s plugged up?

 

[Jhayes780]

Fixed it. Just got rid of all the flat spots.

 

[Grub54891]

Flat spots? So the hose was squished. I'd of just replaced it.

 

[Jhayes780]

No I mean like it runs up then would go along a flat plane or have a small dip then continue up so I guess air was getting trapped