Liquid Fire is in fact an exceptionally Amazing Product. Just remember to read and heed all of their directions and instructions very carefully prior to the application process. Then, read them again and you will not only resolve your clogged drain problem, you will remain completely safe and unharmed, as you are working with highly caustic acid. That means among other terms the need to wear appropriate gloves, protective eye wear or a face mask if available and leaving no skin exposed in the event of unwanted direct contact through a splash back situation. Allow me to personally suggest having some clean clear water nearby in case it is needed for an emergent rinse. /// Please Note... Since my original review as listed above from seven months ago, yesterday on January 28, 2020, I was confronted with a similar need involving a different household bathroom sink. Once again I carefully adhered to the instructions leaving nothing to chance, memory nor imagination and the results once again worked like a charm. Purchased from the same local old fashioned hardware store and noticed they had a couple of similar looking knock-offs now available but I remained loyal without hesitation as I had already identified the best product without any need or desire to switch brands. Could not help but to notice within a few other reviews listed on Amazon there were a few unfair complaints about their local sources at much higher pricing levels. I paid $8.99 plus sales tax which was competitive with traditionally lesser grades of aggressive chemical treatments like Draino. If you have a beef about being ripped-off at the retail level, that is an issue completely out of the manufacturer's control or intention. Thank you once again 'Amazing Products Inc.' for bailing me out of yet another potentially much higher priced plumbing alternative. You have the knack for making my plumbing skills appear much more talented than they truly are.
