Nothing wrong with 16% just cut It down accordingly to the percentages you need. I never try to rinse moss the moss off prematurely. Most customers will understand it takes time for the roots to break down for the moss to release completely. Usually a few good rains will do the trick. If you go the route of leaving it to mother nature, touch base with your customers or swing by to inspect the roof periodically. A new customer can feel abandoned if they aren't familiar with the process and still see moss on the roof... Even if it is dead and just waiting to blow off.
I didnt know you could get 16% i thought 15 was the highest it got, from what Ive been told by the manufacture of SH it starts at 15 then reduces to 12.5 with in a week and levels out there for about 30 days ...
But yes its all good just cut it more like say to 15 gallons SH to 35 gallons H2O
Let others chime in on this....
KID
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Elite Roof Cleaners Roof Cleaning Missouri & Kansas City
my supplier told me it comes from the place where its made 15.5% sometimes higher, thats for where his suppiler is. he said by law they have to put 12.5%. he also said in a garage it will take a month to get down to 12.5%.
one morning we arrived to our supplier the same morning of their supply being delivered, and yeah its definately a little darker and oh so HOT. did a couple rooftops that day and the cleaning process seemed much quicker.
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Ryan Freidline A Team Roof Cleaning Northern Virginia 888.867.7615