Descale cistern


Descale cistern: cistern

If you have very lime-containing water, you have to make sure that your toilet is clogged occasionally. However, not all remedies are effective and others are extremely harmful to aquatic life. If you want to use home remedies to descale the cistern, you will find out what is helpful and what is less.

It is still easy to decalcify a surface-mounted cistern, but how does one approach the now much more common concealed cisterns? First of all, everything is not rocket science. Some manufacturers have even installed shafts on the tabs for this purpose in the cisterns can be given.

But if you have soft water, you do not have to worry about limescale in the cistern. With low to medium lime content in the water, heat would be needed to produce calcium deposits. The water hardness can be obtained from your water supplier or researched on the Internet. A look into the cistern of course, as well as a water hardness test.

Contents: Decalcify cistern

  • Toilet cistern - water is running!
  • How often should you descale the cistern?
  • Water hardness
  • Open the cistern for descaling
  • Mechanical pre-cleaning of a calcified cistern
  • Home remedy for decalcifying a cistern
  • Special cleaner for descaling
  • Decalcify cistern - instructions

Toilet cistern - water is running!

Clogging water can be a sign of calcification in the cistern. However, it is also possible that a gasket has become porous. In any case, it helps to look in the cistern and to descale it with visible calcium deposits. This can also be seen after the seals and these are replaced if necessary.

How often should you descale the cistern?

It depends very much on the water hardness and the use of the toilet flush, but at least every one to two years you should take a look in the cistern and see if limescale has settled. With hard water more often.

Water hardness

The water hardness depends on the content of calcium and magnesium compounds, which are formed by the connection with carbon dioxide. A distinction is made between four hardness ranges, which you will also find when using detergent or special salt in dishwashers.

  1. Soft water has up to 7.3° dH
  2. Medium hard water has 7.3° dH to 14° dH
  3. Hard water more than 14° dH to 21.3° dH
  4. Very hard water over 21.3° dH

In addition, there is a new regulation, which has been adapted to the European standard and contains only three levels.

  1. Soft water less than 8.4° dH
  2. Medium hard water with 8.4° dH to 14° dH
  3. Hard water over 14° dH

The term dH stands for degrees of German hardness and refers to the calcium oxide content.

The water hardness can be obtained from your water supplier or researched on the Internet. A look into the cistern of course, as well as a water hardness test.

Open the cistern for descaling

Is your cistern a surface-mounted cistern or concealed cistern? These two common types of cisterns differ in terms of descaling only by the accessibility or opening of the cistern. Non-contact fittings and the like are rather rare to find in private homes. They are not considered here because they should be better maintained by professionals.

Descale cistern: cistern

Widely used and easy to open - on-wall cistern.

Descale cistern: descale

For flush-mounted cisterns, only rinsing buttons are visible.

The surface-mounted cistern is easy to open by slightly lifting the upper hood and pulling it to the right. If there are no signs of calcification, you can simply replace the lid and turn to other tasks. If you see limescale deposits, you should descale your surface-mounted cistern.

Descale cistern: water

Push flush buttons with frame upwards.

At theConcealed cistern the path leads over the rinse button. Depending on the model, this is either simply pulled forwards or pushed to one side (usually upwards) and can then be removed. Inside there are more frames that can be removed. Sometimes there are sliding locks or levers, sometimes just screws.

So longno violence is applied, it is not a problem to try in which direction the levers or brackets u. move and open. The plate or plates are taken out to the front, while the flushing lever, which goes through the plates remains in it. He must be led through the openings.

Some models have a slot below the plastic cover to hold descaling tabs, which of course makes descaling or prevention easier. But of course, even with these cisterns, the other cover plates are removed, for example, to see more precisely whether a calcification is recognizable.

Descale cistern: descale

Open concealed cistern.

Descale cistern: acid

Inner plates can be screwed.

Descale cistern: descale

Small service opening for descaling tabs.

Mechanical pre-cleaning of a calcified cistern

With a surface-mounted cistern, it is easily possible to remove coarse incrustations with a brush for the most part mechanically. This significantly reduces the exposure time and possibly necessary repeats with lime solubilizers. Which is very useful for environmental protection. The concealed cistern is rather difficult.

Home remedy for decalcifying a cistern

  • citric acid - A good option, especially for cold decalcification. However, this form requires onelong exposure time.
  • vinegar - Good effective, but only use if no metal is installed in the cistern (certain alloys do not tolerate vinegar essence). Ratherfor easier calcification to recommend.
  • Gebissreinigertabs - The advantage of Gebißreinigertabs is thefaster reaction, However, some tabs are required, so they areexpensive as other home remedies. Decalcify cistern with Kukident (Coregatabs, blend-a-dent, etc.) or a noname product? The brand does not play a decisive role, as it has also done good discount store own brands in various tests.

Descale cistern: water

In home remedies, especially acids are effective against lime.

Descale cistern: water

Cistern Spezialentalkalker there are liquid and as tabs.

Special cleaner for descaling

  • tabs There are different manufacturers. Please read carefully the instructions on the packaging before you buy, as some of them cause lasting damage to aquatic organisms. In particular, in the cisterns with corresponding feed chutes is theAdvantage the very easy handling, But a tab must first dissolve - so they have a longer exposure time compared to the liquid decalcifiers.
  • There are special onesFlüssigentkalker, which are used especially for cisterns (hot descaling eg for coffee machines etc. are not sufficient). Again pay close attention to the warnings and do not use any means that damage the aquatic organisms in sewage treatment plants and water bodies. Liquid decalcifiers do not have to dissolve first and therefore usually have a bitshorter exposure time.
  • hydrochloric acid is atstrong calcifications also used by installers. Because of the high risk of burns, please use only with safety goggles, gloves and not in the presence of children and pets. TheAcid is very aggressive and also attacks the materials of the cistern. Therefore, it should be carefully considered when a use of hydrochloric acid is worthwhile or actually necessary.

Decalcify cistern - instructions

Before starting to work, the angle valve must be closed to prevent water running off.

In a surface-mounted cistern, some parts can be easily removed and decalcified in a bucket and / or mechanically cleaned. This saves descalers, cuts costs and protects the environment. A good opportunity to look at the seals and replace them if necessary. Advanced home improvement may also take on the expansion of parts of a concealed cistern.

Warning: All agents contain acids. Please handle it carefully, wear gloves and safety goggles to prevent splashes from getting in the eyes. Do not inhale vapors. Keep away from children and pets.

It depends in each case on the correct dosage and exposure time. In case of doubt, rather than letting too aggressive a solution react too long, as this can also attack the material. Depending on the means, it is advisable to descale the cistern overnight. Especially when using gentler home remedies (except vinegar essence).

Decalcify cistern with citric acid:

  • Per liter of 10% citric acid 80 g (4 heaped tablespoons) per liter of water. For liquid citric acid, dilute according to the concentration so that a 3% solution is obtained in the cistern or bucket. However, it is best to use citric acid as a powder for such applications, which is cheaper. Dissolve in hot water as instructed on the package, but do not put in the cistern until it has cooled down again, so that the reaction with lime will not result in the formation of sparingly soluble calcium citrate. Citric acid is suitable for mild to moderate calcifications, but must act for a few hours (optimally overnight).

Decalcify cistern with vinegar essence:

  • For light calcium deposits, you can dilute vinegar essence 1: 4 with hot water and descale it. Depending on the calcification, allow to act for up to one hour.

Attention: Do not inhale the vapors, as they irritate the mucous membranes - open windows. Please do not significantly prolong the contact time with vinegar essence, as acetic acid also attacks gum.

Decalcify cistern with denture cleaner:

  • With denture cleaners one tab per liter is dosed and the mixture may work overnight in the cistern. The effect is generally cleansing and suitable for light calcification.

Descale cistern with special descalers:

  • Please follow exactly the instructions of the manufacturer. The concentration of active ingredients is very different, therefore, no general statements can be made. In any case, before buying exactly the instructions for use and read the warnings.

Decalcify cistern with hydrochloric acid:

  • Hydrochloric acid is a very aggressive acid that should be used with the utmost care. Only a strong calcification justifies dealing with it. Dilution of 1 part hydrochloric acid to 10 parts water is a good dosage. The solution should only act until no air bubbles rise, because then the reaction is completed. However, with strong dilution in wastewater, hydrochloric acid is less harmful to the environment than many other cleaners.

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