Sully2ExplorerJul 08, 2014How much PSI???Got a pressure sprayer here and a coach that has some REALLY filthy spots. I know that HI is WAAAAYYYY too much pressure to use but what psi settings can / would a guy use. Bad locations are the r...Show More
bshpilotExplorerJul 08, 2014Start w/ the least - you can always (slowly) turn it up....stay away from any seams, joints, seals or other objects where water could enter.