Backup Sump Pump (battery)

Ian Gills said:

Are you sure it's not a swimming pool you have down there?

Click to expand...

HA, it's actually 31" x 22" x 30" deep

Hopefully this is my last question.

I have 'tweaked' my set up and it's a little cleaner in the pit. But for my 12V battery backup, I can't get the float set up properly. It's either it's too high and the water rises more than I want, or the float is too low and the pump runs and keeps running even when the water level is below it. So my question is... will it wreck the 12V pump if it runs and it's not pumping water up/out, or will it burn the motor out? I have been told yes it will burn it out, and I've been told nah, don't worry about it.

Thoughts?

To add to my previous post......

Are the 12V battery backup pumps supposed to be completely submerged under water? Or is the wiring part supposed to be out of the water?

The pump is suppose to be water tight, especially where the wire goes into the pump. It is a totaly submersible pump

You can add multiple batteries and you arnt being paranoid. Just connect them in parallel, Its also adviseable to use the same type battery, ie deep cycle with deepcycle. I have two connected to my 12v sump pump because I have a nice basement bar. Cheers,

I know my basementwatch dog 12 sump pump runs dry a few seconds each time the backup kicks on. The manufacturer states that this is normal and will not damage the motor. I think it would have to be running for a very long time before you had a problem.