Both gentlemen who help me ar
ound the pool say I can use a pressure washer to clean the dirt around the perimeter of my fiberglass pool. Recently we noticed the dirt in the enclosed photo. We tried a 550 psi battery-operated washer and it didn't touch it. Does anyone have an idea on how high a pressure I can use? Obviously readily available gas-operated ones are around 3000. Any ideas would be greatly appreciated...short of draining the whole d**n pool and acid washing.
