Roof Washing Mixture

Where can I buy 12.5% SH in the Seattle, WA area? We don’t have any pool supply stores that I know of. They only sell 10% bleach at Walmart or Lowe’s.

Ag store. Chem supplier. Local cleaning or chemical company. It can be a challenge to find it and it’s probably going to be for sale in a 55 gallon drum. If your lucky you live by a big manufacturer!

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There will definitely be wholesale pool supply stores there but if your looking for the best deal you’ll want find chemical supply companies.

Thank you

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