Ted H

I had the same problem on a white vinyl house. Off bug spray was sprayed on several places. Tried everything, but nothing worked. SH would cause the discoloration to run down the side like it was cleaning it but again it was back. Called the 800 # on the back of the Off can for consumer help. Was told that the chemical bonded with the vinyl and more than likely would never come out. They asked me if I did discover a way to remove it to please call them back and let them know so that they could inform other customers with the problem. I have gone back at different times to try something else, the stains have lightened but still there.

I have a 20 x 20 brick patio and 3 x 18 brick walkway to do with the house I'm doing. The bricks are green and moldy. What would be the best chemical and mixture to use on this. House wash is Simple Cherry and 12.5 SH.

If you're still passing out copies, I'd like to see one to. socrdad1@comcast.net Thank you

Thanks Beth & Rod, had to step away for a few to help with homework. The homeowners said they just had some guy do it 2 years ago and he made it match. I told them I would clean it again to try and lighten it even more. Should I make F-18 8 oz. per gallon and try about 10 min. dwell.

Today I attempted to clean a neglected, dirty, mildewed, greyed out pressure treated deck. This deck sits facing salt water, about 100ft. from the water. I used some F-18 that had been mixed about a week at 4 oz. per gallon. Then neutralized. Well in the center of the deck is an 8 ft. wide carpet that we pulled back. It looked like new wood under it. For the life of me I could not get the surrounding dirty deck to match up with any satisfaction to the section under the carpet. I'm going back tomorrow to try again. Any suggestions on mix(was I way to weak), dwell time, etc.. Thanks in advance for all responses.