Mighty Mike T-5690 Industrial Liquid Descaler, 1-Gallon

used a whole gallon on a stone recirculating waterfall and did nothing. no contact customer service connection. A expensive lesson.

We purchase this produce a lot. It is incredible to descale hard water scale build up from commercial equipment. Our techs will not use any other produce other than this one. Worth every penny, unless you want to scrape the hard scale by hand.

This is an amazing chemical. I was able to dissolve tons of calcified gook in my outboard motor. I rigged-up a bilge pump to pump this descaler through the engine for an hour or so. I then flushed with regular water and went fishing. No more overheating. Great stuff.