I thought so……you figured it out. Fix that and go back and try again, no worries.
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Once you have you water pulling the same leave it set there. Just adjust your sh, you should be good then.
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What surfactant are you using?
Roof Snot from Southside.
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If it’s brown it’s coming down, if it’s black you’re going back.
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Yeah hard to tell what color it is by the pic. I’ll see what happens after the rain this weekend.
I like the way you think 
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Just play with your buckets and dial in 3-5%. The vast majority I do at 3-4%. 3% if fresh will clean most of the roof. With the price of SH what it is, better to have to hit a couple of sections a little more than shoot 5% on the entire roof. That one not even that dirty. 4% would have gotten easily. Most of mine similar to @Kentucky1234 .
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Did it turn brown-ish when you applied? I tell my guys “once it’s brown it’s coming down”. Sometimes you have to apply a couple of times.
It was a cloudy day, I honestly couldn’t tell. Apparently even though I had my SH valve full open, it was only drawing a 1:2 ratio and coupled with weak November bleach it didn’t do much.
