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nw pa | try some zinc, Lots of moss growing on the roofs around here and they nail zinc strips so when it rains it washes down the roof. Seems to do the job. Make have to get a liquid formula for what you want. I keep thinking copper sulfate would also work but haven't tried it.
As far as your wife is concerned, can't help you there, have to go to forum page for that kind of talk. | |
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thanks again to NAT
