If the toilet is not used for a long time, the water in it will be very dirty

Yes, soak it with toilet cleaner, wash it again after a day, don't use steel wool balls or sandpaper, it will be difficult to scrub the glaze after grinding it off, drop a little more toilet cleaner, and don't rinse it with water before soaking.

Oxalic acid, daily miscellaneous, hardware stores are sold, two or three yuan a bottle, (the kind of bottle that hangs water in the hospital) poured into the toilet and waited for ten minutes to flush with water. Note: Do not dilute with water first, if you have a chemical taste, please turn on the exhaust fan. >>>More

The mixture of vinegar and water is poured into the toilet, soaked for half a day for a few hours, and then rinsed off with water, which can have the effect of disinfection and deodorization. >>>More

Oxalic acid, daily miscellaneous, hardware stores are sold, two or three pieces of a bottle, (the hospital hangs the water next to the hole bottle) poured into the toilet and waited for more than ten minutes to flush with water. Note: Do not dilute with water first, there is a chemical taste, please turn on the exhaust fan to upgrade the chain. >>>More

1. When the water pressure is unstable, the water in the toilet tank is very likely to flow backwards, and the water with toilet cleaner will be pumped back into the water supply pipe, and the water will become blue when it flows out again. Experts remind that this kind of water is harmful to people's health and should not be drunk, and if you find that a similar situation occurs in your own tap water, you should communicate with your neighbors in time, and then drain the water from the flush toilet tank to prevent it from flowing back again. >>>More