Toilet, rust, what causes toilet problems? Connecting wires? Or is it a valve?

There are many reasons for rust in the toilet, there may be the quality of the valve, the iron valve of the old pipe downstairs will also rust after many years of use, and they will converge in the toilet tank and settle for a long time, which will form dirt. That is, the dirt water in the tank, the more it flows, it will be like your toilet now. Therefore, it is now possible to clean all the inside and outside of the toilet bowl first to form a habit.

Clean the outside and the inside first. This way, there will be no dirt.

It is a problem of water quality, and the yellowing is scale, which can be cleaned off with alkaline noodles or toilet cleaning agents, and the easiest way is to clean it once a day, and there will be no yellow scale.

It's not rust, it's dirt, there's decontamination powder or toilet cleaners.

The first water quality problem, the second day to wash with the side of the cleaner, that is, to remove the smell and clean!

It's rust, you can't avoid it, you have to clean it more.

Limescale can be removed with a face alkali.