Как очистить унитаз от старого, прочного, толстого налета мочевого камня, если он очень грязный

This video shows how to clean a very dirty toilet from very stubborn, old, hard, thick urinary calculus deposits. It's easy and simple to do yourself, effortlessly, effectively, and without fuss, without even wearing gloves. Just pour acid on the deposits and cut them off with a utility knife. Even a grinder with a diamond blade won't do a better job! Watch this video until the end! Please support the channel! Like, subscribe, ring the bell, and share the link with your friends on social media!