I have had luck with a pressure washer and a house cleaning (krud kutter purple color) solution. Just found SNO CAP (available at ACE hardware), this is a mild acid, and does a fantastic job at removing rust stains from the recycled water, it MIGHT also work of the bug stuff. I just hand spray on and 2 minutes later hose off.
__________________
Pennsylvania, for 60+ years, most recently, Allentown, now TV. 
|