>> Would a 1 1/2 HP centrifugal pool pump work to pull
>> water (aprox 3 - 4ft in elavation) from lake for
>> watering lawn and garden?? RM~
> A above ground pool pump is below the surface level of
> the water so that that type of pump need not be good at
> creating a vacuum at the inlet.
> I would think that that type of pump would have a
> difficult time self priming at four feet. Try to locate
> the pump as close to the level of the water as possible.
Yes, I think that's right.
I use my pool's own pump to empty it when that needs to be
done, and once it gets started, it has no problem draining
it all the way down - six feet plus maybe a foot the pump is
elevated above the top of the pool. But if it ever loses
its prime, it can't get it back beyond a foot or so down.
When it's driving air, the pump's impeller just can't create
enough vacuum to lift water very far.
But may should work ok if you put it close to lake level and
let it push the water uphill.