Have you ever tried pouring vinegar into the toilet bowl? If not, then you definitely need to do it, and I'll tell you why.
When you are going to clean the toilet, few people pay attention to what the cistern looks like inside. The toilet bowl accumulates plaque, rust, dirt, and all this must be cleaned. If you have never done this, then removing the lid from the drain tank, you will be surprised how dirty it is. There are many ways to clean the inside of the toilet bowl from rust and plaque. Now I will show you how to clean the inside of the toilet bowl with vinegar.
You will need table 9% vinegar. Turn off the tap that supplies water to the tank. Then drain the tank and fill it with vinegar and water. Vinegar will need about 1 liter. Water must be poured to the water level in the tank, and its temperature should be 50 degrees. Spray the top of the tank with vinegar. Leave for 1 hour, or longer, and then start cleaning.
This is how easy it is to clean the toilet bowl from the inside from plaque and rust. Thus, you need to clean the drain tank at least once a year. If you have very hard and rusty water, you will have to clean more often.