I read the reviews and I thought I would try it on my kitchen sink. Poured one container in and let it sit for 2 hours and then poured boiling water down the drain...NOTHING! So I poured the 2nd bottle in and let it sit overnight. In the morning I again poured boiling water down the drain. Didn't work AGAIN...so I'm trying a different product.
Bottom Line: No, I would not recommend this to a friend
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