[villagetinker]

Originally Posted by Velvet

I have a pressure washer, thank you for your suggestion, can I spray on diluted bleach before or after pressure washing?

There are commercial products that I would use first (Wet and Forget), HOWEVER if you are asking about using the liquid IN your pressure washer check your instruction manual. Mine states ONLY soaps or cleaners rated for pressure washer use and NEVER use chorine as this will damage the pressure washer.