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Roof looks great michael, just wondering though what kind of pressure you mean by low? Hopefully it shouldn't have been any.
Jordan, you can use the same equipment and mix to do the house, just a little less concentrated. Some people apply the mix with the rc equipment and some use cold or steam pressure washers. The choice is yours.

you said you used power washer for house, did u down stream it ? then high pressure rinse?  
I just use my fat boy for house washing and rinse with home owners water and firemans nozzel...


KID

I'll be honest with you,  that setup works great on houses.  There really isn't a reason to use high pressure on exteriors unless your doing flat work.  Whats comes out of the homeowner's hose bib is plenty to rinse. 

I DS the house with my machine because I don't have a big enough tank just for a "house mix",  so I pull my "house wash" from 5's and let the machine's injector dilute the mix.  I don't even think my "roof mix" tank is big enough, but it's all I have for now. 

mike