Just finished my first roof cleaning this past weekend, and it turned out pretty good. I actually cleaned it using only CH, water, and Greenwash, and I didn't notice any residue. It seems that if you carefully transfer the mixed CH from the mixing bucket into a smaller bucket for pouring in your chem tank, you can all but eliminate the hard water chemicals from your roof mix. My setup is the fatboy system from PressureTek, with a 50 gal chem tank and 100 gal SH tank. AC's systems looks awesome, just currently out of my price range.
So does anyone know the meaning of " Lexington" ?? I did a google search and there was no mention of CH. I think I am going to treat the darkest streaks with SH and the rest with CH and call it a day. That way I can make sure no sh runs off the roof
-- Edited by John Smith on Wednesday 27th of February 2013 09:43:34 PM
Thanks for the words of encouragement. I just purchased my first tank of SH, so the only thing I had available at the time was CH. We have several tunnels in the area, and my SH supplier said that I couldn't take more than 100 gallons through them without DOT placards. I think I'll take his word for it.
Lee, to answer your question, I'm pretty sure that VA will allow up too 119 with just MSDS and a spill contigency. If anyone knows differently, let me know.