Descale a toilet cistern

To use toilets, a cistern is needed. The rinsing and filling works via a mechanism inside the cistern. Again and again it happens that substances dissolved in the water settle on the mechanics and in the cistern, so of course also lime. Over time, limescale but deteriorate the functioning. Particularly in regions with very hard water, the lime that is useful for people is often heavily calcified for water-bearing devices and thus also the cistern. Below we will inform you how to decalcify your toilet cistern efficiently and what else is important to know about lime.

When is water particularly hard or calcareous?

Our tap water is extracted regionally from the groundwater. Depending on the nature of the respective region, this means that the most diverse substances can be contained in the water. Calcified, ie hard water is mainly found in regions with high limestone and sandstone deposits.

The effect of lime on people and machines

This lime consists of magnesium and calcium. Therefore, it is not only safe for us humans, but even recommended. After all, these are minerals that our body needs. Bones are built this way, but also in the teeth these substances are needed. But what is good for humans does not have to be good for machines and equipment.

Everywhere in the household, there are devices that tend to lime deposits

The water-bound lime continues to settle from the water. Almost everywhere where hard water can be found in the home, there are deposits:

  • Dishwashers and washing machines
  • Coffee machines and other household appliances
  • Cistern and toilet ceramics
  • water pipes
  • on faucets and shower heads

Problems of permanent calcifications

Limescale deposits can be permanently detrimental. They provide a larger surface area and optimum breeding ground for bacteria within tube performance. In the case of toilets, on the other hand, it is above all the function of the mechanical cisterns that is increasingly negatively influenced over time. In addition, the lime deposits on the toilet ceramic can be seen and look rather unappetizing. In addition, they are difficult to remove mechanically.

Ways to descale the toilet cistern

But of course lime can also be removed, so also from the toilet cistern. Basically, acids dissolve lime. So the more aggressive an acid, the faster and more efficient lime is dissolved. However, strong acids can attack machine parts, so the mixing ratio with water must be dosed accordingly. Here are some ways to successfully descale your toilet cistern:

  • Descaling agent from the store
  • Vinegar and vinegar essence
  • citric acid
  • Denture cleanser tablets
  • citric acid
  • Hydrochloric acid, diluted

Home remedies for descaling the toilet

Descaling products are relatively expensive. Therefore, you should first resort to home remedies. However, you must take into account that these acids and agents can react differently depending on the concentration and temperature.

Vinegar essence and acetic acid for decalcifying the toilet cistern

For example, vinegar contains about 5 percent acetic acid, while vinegar essence contains 25 percent. Thus, the Essigessenz is also identical to pure acetic acid, which usually also has nearly 25 percent. Conventional vinegar is therefore very poorly suited. Even 25% acetic acid should be mixed at least in a ratio of 1: 2, ie 1 part vinegar essence or acetic acid to 2 parts water. Then the mixture has to act for several hours. Strong limescale creates this solution but only partially, so it should be applied to slight calcifications in the toilet cistern.

Citric acid to descale the toilet

Citric acid is much more efficient. This is not - as often mistakenly assumed - identical to lemon juice. The mixing ratio plays an enormously important role. If the proportion of citric acid in the water is too low and hot water is also used, this mixture can do more harm than good. This is because calcium citrate can then flocculate. Therefore, the proportion of citric acid should be rather high. The minimum is about 10 percent citric acid, or (as often available in powder form) 40 grams per pint of water. Citric acid is good for moderate to severe calcifications.

Decalcify hydrochloric acid to WC

25- to 30-percent hydrochloric acid is one of the best methods for descaling. The mixing ratio should be at least 1:10. You can also pour 25% hydrochloric acid into the ceramics (about one drinking glass full). You literally hear how the acid works. If there are still limescale residues, you have to carry out the application again, since all the acid was previously "used up".

Tips & Tricks

To really decalcify the cistern, it makes sense to remove the parts of the flushing mechanism and place them in a vessel with a descaling solution. You can find out how and what you need to disassemble in the toilet cistern under "Toilet flushing runs after". Especially with hard tap water, it is usually not only with limescale deposits. Lime reacts chemically to urine. The harder the rinse water is, the more urine stone is formed. As a result, more and more systems are catching up, collecting neutral rainwater and flushing it to the toilet.

Video Board: Put VINEGAR into the toilet tank and watch what happens when you pull the chain