On Aug 29, 9:16*am, Ian wrote:
I need to do some water testing of a skylight assembly that is about 80' above the ground. *When I run hoses up the skylight, the pressure drop is so great that I don't get much water flow.

If I can get a pressure washer up to the skylight, can I use it to boost the pressure and increase the volume of water flow? *Put another way, can I use it as an auxiliary pumping device to augment flow, or will the low pressure at the intake limit my flow?

Thanks,

Ian

Most power washers don't have much volume. You might be better off
with a regular electric pump.