What pressure should i use with pump

Hi all how is it going iam new ie 2 days to wfp and iam in love with it all ready but i have one question what water pressure should i use with the pump how do i know how much water to put through the pump to the brush. any tips peeps

To which pump do you refer?

What type of brush and nozzles do you have?

Have you ever measured water flow (GPM = gallons per minute?) Most recommend 0.5GPM through the brush.

Too much pressure can create spotting issues with overspray.

For DI tank users, a water regulator – set at 45PSI – is advised.

The home I cleaned today (2-story plus slope) had 110PSI at the tap (!), so no need for the pump on my RHG RO/DI cart.