Keep your wire runs short as possible and your connections at a minimum and well protected from moisture as high out of the bilge as possible. We do recommend every boat have an automatic float switch feed for the bilge pump but recommend the auto float switch lead be run directly from the boats battery fused of course.
Rule Automatic Bilge Pumps
Wire bilge pump directly to battery. Connect the bilge pump directly to the battery. In most cases use an on off switch on new wire marine custom marine switch panels we recommend using an standard onoff manual bilge switch. When wiring a bilge pump do not go through the distribution panel. My last boat had a rocker switch on the dash if you. Troubleshooting bilge pump wiring to find out why bilge pump not working. Also verified that there was 12v coming into the plug that connects to float.
At that point it has a float switch and will only run if water fills up in the bilge. Verified pump works by applying 12v direct to motor. The most elegant situation is to have a solar panel say 60 watt charging the battery connected to the bilge pump. Its more flexable then house or automotive wireing. A grounding block is un fused and wires directly to the negative pole of the battery or the engine. Id suggest nothing should be wired directly to a battery without a fusible link.
To do it right use marine grade wire. Seems the float is not working as i checked it for continuity but i jumped through the plug that the float connects to and still not working. My experience is that the float switch on the pump is always the first item to go home. Even when the boat power is off the bilge pump should still be able to receive power. Am i correctthe bilge pump needs to be turned on powered by the rocker switch on the dash. Question about bilge pump functionality.
Gallery of Wire Bilge Pump Directly To Battery
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