Bilge Pump Tubing

[USAF_Pride]

I think I have discovered that some of my water infiltration is coming from an improperly installed bilge tubing. The service manual talks about a loop and a hole drilled in it, which mine doesn't have.

Does someone have a picture of their bilge pump tubing that is "properly" installed?

Thanks.

 

[LouDoo]

Sorry I don't have a picture, but the loop they're talking about is simply a raised portion of hose, attached higher than the bilge pump outlet. This is to keep water from siphoning back into the boat.

Lou

 

[USAF_Pride]

Sorry I don't have a picture, but the loop they're talking about is simply a raised portion of hose, attached higher than the bilge pump outlet. This is to keep water from siphoning back into the boat.

Lou

Thanks Lou. If that is all it is, I don't need a picture (apparently Sea-Doo has a different definition of "loop" than I do). I am pretty sure mine isn't up. I assume the "hole" is put in the top of the tube?

 

[LouDoo]

I don't know why there would need to be a hole in the hose, seems to me it would just be a place for water to leak when the bilge pump is on. Maybe someone else has an answer.

Lou

 

[USAF_Pride]

I don't know why there would need to be a hole in the hose, seems to me it would just be a place for water to leak when the bilge pump is on. Maybe someone else has an answer.

Lou

I don't get it either, but the manual states

Drill a 0.8 mm (1/32 in) hole where the tube is formed into a loop. This will prevent any type of siphoning that could occur in certain situations.

I'll do it and report back. If it causes issues, black tape to the rescue!!

 

[Luv2Camp]

I don't get it either, but the manual states

I'll do it and report back. If it causes issues, black tape to the rescue!!

I seem to remember a recent post that showed the elbow that connects PVC tubes from the bilge boxes to the outputs on the pump had a very tiny hole drilled in the top of the connector

 

[Hydro_Therapy]

Small hole at the top of the loop will break a siphon- you can draw water up a long ways with a siphon provided the exit is lower than the fluid level- the bottom of the bilge in a boat is typically lower than the water surface AND the discharge for the bilge pump. If for some reason your discharge is below the water line, a siphon could be started by the pump removing water and cause the bilge to fill faster than the pump can bail. Simply having that small hole will only cause a slight dribble of water back into the bilge when the pump is 'de-watering' (it's water that's already in the hull anyway) but will break the siphon and could save your boat.


Sent from my iPad using Tapatalk