Bests & Worsts Reviews from Amazon

So I didn't take video, but the evidence says this stuff worked all too well. Please have an auger on hand if you're using this on a nearly-clogged sewer main. This removed so much material so fast that the soup it created clogged the sewer main and it took over an hour to get it cleared out moving the sludge slowly down the main. After a week, it clogged again with a somewhat easier clean. After another week, it clogged the same way, only farther down the main and cleared pretty easily. After that, no issues at all. All evidence indicates that we had a massive amount of sludge built up on our old cast iron sewer main and this chewed it to bits. Use caution, and plan carefully. If possible, have your own auger on hand to clear and use with patience.