"Jon Elson" wrote: Huh? A pressure washer delivers 1500+ PSI! To lift
water 20', you only need about 10 PSI. (clip)
^^^^^^^^^^^^^^^^^^^^^^
If you combine Ignoramus idea with mine, I think you will have a god working
system. Use the pressure washer to drive a jet pump (like used on a
waterbed.) The washer would send out a thin, high velocity stream, which
should easily lift a large volume of water 20 ft.