Many good answers regarding startup needs for the motor already came in.
I wanted to mention what I did for a similar situation. I bought a 12VDC
battery backed up sump pump that mounts above the main pump. When power is
on the main pump does the work. When the power is out the level rises until
the backup pump kicks in. If the power is out for a long time you can use
the generator to recharge the backup's battery.
Mark Miller
Mark Andy asked:
> Howdy,
>
> Our power went out last night, so I ran an extension cord from the little
> 1000W Honda (EX, not an EU) generator off down to the sump pump, plugged
> it in, and was dismayed to see the pump not work. Later on, power came
> back on and the pump worked fine.
>
> I can't imagine that pump is anything more than a 1 hp unit, probably more
> like 1/3 or 1/2 hp... What size generator do I need to make that puppy
> work?
>
> Thanks!
>
> Mark
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