Hi all - I'm new to the forum but have been in the roofing biz for 17 years. It seems easier to clean em than replace em so I'm doing my research and appreciate all the info that the veterans share here. Is anyone willing to share the ratios SH, TSP and H20 that they use or is that too much to ask? I don't want to step on any toes here, I'm just not sure how much is too much to ask. Thanks again for all the info.