[John Miller]

Hey guys, I have question about how the bilge pump should operate. Mine works fine when I turn it on with the dash switch. It has a float on the pump but it will not kick the pump on . Can just the float switch be replaced or does it come as a complete assembly with a pump?. Another question I have is will the float switch turn the pump on with the key in the off position? We are getting ready for a trip to Big Cedar Lodge on Table Rock and I am going to be renting a boat slip for the week and I want to make sure the automatic bilge pump is working properly.

Thanks,
John Miller

[anthonybradley]

yes it should run when electrics are off, it is normally wired direct to the battery switch or battery via an inline fuse, check there for blown / corroded fuse. Also the switchs can go bat, some simple tests with a multimetere will shows you whats really going on.

Ants

[ShabahZ250]

When I was cleaning my bilge earlier this year, the bilge was full of water, and I noticed my automatic float switch on the bilge pump didn't seem to be working correctly, so I inspected the whole thing. It is one solid unit, with the automatic switch mounted to the side of it. Then I tried a test, and lifted the sensor up and down about a dozen times, and it started working again. Apparently the float switch can get crudded up with grime, and the contacts get dirty. Give that a try and see what happens!

[John Miller]

I have tried moving the sensor up and down and it still wont kick on. I guess I will be ordering a new one. Is there any one brand that is better than the rest? Thanks for the replies.

John

[ShabahZ250]

Mayfair is the OEM brand. However they all do the same thing, just make sure and put the same size (gph) pump in there.

[anthonybradley]

Also check the outlet pipe size, there are two standard sizes (about 19mm and 26mm from memory)

Ants

[KSP181]

I just put a float switch on a buddy's fish and ski. We ran a direct wire from the battery to the float switch. We also ran a switch to the dash as a backup, so it will work with either, in case the float fails. You can buy a float switch separate from the pump if the pump is working.

[John Miller]

It has an Attwood 900v in it now, When I was taking it out to check it out I broke the outlet when I was taking the hose off. I just ordered a new pump switch and pump so I should be ready to go for the weekend. Thanks for the help guys.

John