But, every now and then, it's good to give the hidden parts—like the tank—a necessary clean, too! While cleaning the toilet bowl is likely (and should be) part of your weekly cleaning ...
By cleaning your toilet tank just twice a year you can keep your bathroom smelling fresh, extend the life of the flushing mechanisms, and maybe even keep your toilet bowl a little cleaner.
Instead, they recommend hurling a bucket of water into the loo for a tank-free flush ... many people dismissed the tip - arguing that toilet cleaner is typically concentrated and meant to be ...
If you are concerned about more water entering the toilet when you flush, shut the water off at the tank. Call a plumber if you do this process twice with no result.