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Old 04-19-2015, 05:24 PM   #1
Join Date: Apr 2015
Posts: 1
Exclamation bilage pump

we are new owners of a 1992 Maxum 1900xr. The boat has 2 bilage pumps in the back, wondering if anyone knows if one is manual and one is auto?
Also where can i purchase the bilage pump for this boat?
looking forward to a great summer.

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Old 04-20-2015, 12:04 AM   #2
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Join Date: Feb 2015
Location: TN
Posts: 8

Most likely the extra bilge is a replacement, and the previous owner did not remove the faulty unit. I do not know your model specifically, but it would be unusual to have two pumps.

The pump should be wired to a switch where you can turn on manually, but can have a float switch for automatic too.

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Old 04-20-2015, 01:41 PM   #3

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Posts: 5,625

Welcome aboard Nancy!!

You should have two circuits. One circuit for the manual switch at the helm and the other circuit for the float switch. Many pumps have two circuits. This allow you to wire the manual circuit from your dash to the pump and the hot circuit to a float switch, then from the float switch to the other circuit on the pump. If both pumps are wired, they may have wired one with the manual circuit and the float switch circuit directly to the 2nd pump which more than likely has an internal float switch. My guess is their logic was the float switch is for when they are away, and the manual switch allows them to double the bilge pump output in case of emergency.

I'd start with the helm and locate the bilge switch. Turn it on and see which bilge pump turns on (if any). At least you know whether the manual bilge pump circuit is working and which one it goes too.
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