Product Q&A

Answer:

Crystal Blue Copper Sulfate should only be used to control algae in listed bodies of water and for other uses approved on the product label. This product can be corrosive and would likely cause damage if you tried to spray it on a structure. We do sell other products made for this use, such as Lilly Miller Moss Out Heavy Duty Cleaner, which is made specifically to treat surfaces like roofs, siding, concrete, and patios. Bayer Advanced 2 in 1 Moss and Algae Killer RTS is another option that is convenient for treating smaller areas.

Answer last updated on: 02/09/2016

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