
I have mold on the underside of my retractable canvas canopy. Regular soap and water didn't work so I bought this product based on the 5 star reviews. I used it as directed, scrubbing with a sponge and toothbrush. Then, also as stated, I used full strength and left the solution on for 20 minutes. I rinsed thoroughly but there was very little change from the original stain. I wouldn't spend money on that.

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