How much salt to put in the dishwasher

How much salt to put in the dishwasher

All water that flows in pipes and out of the tap has calcium and magnesium in it. The greater the concentration of these salts in the water, the harder it is considered. If such water will be used to wash dishes in the dishwasher, the individual elements of the device over time will begin to show scale, which can subsequently lead to the failure of the machine.

dishwasher manufacturers build dishwashers with ion exchangers to prevent this from happening. These devices contain resin, which attracts calcium and then eliminates them. However, to regenerate the resin you need sodium chloride, which is the main ingredient in dishwasher salts.

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Dishwasher salt not only prolongs the life of the appliance, but also helps to clean dishes better, since after washing, there are no stains or streaks on the mugs and plates.

Salt reservoir

The question of where to put the salt in the dishwasher shouldn’t be a problem. In all dishwashers, the salt drawer is located at the bottom of the dishwasher, under the bottom basket. To pour granulated salt into it, you need to use a funnel.

Important! When putting salt in the dishwasher for the first time, it’s first necessary to fill the compartment with water. As the salt is poured, the excess water will go down the drain.

As for the 3-in-1 salt pellets, there is a special compartment for them. It is on the inside of the door.

Water hardness and salt consumption

To soften the water in the dishwasher, there is a special device in the form of a reservoir called an ion exchanger. Inside the ion exchanger is a resin with negatively charged chlorine ions. These ions attract impurities of magnesium and calcium in the water, the water becomes softer. If this is not done, then at high temperatures, magnesium and calcium form a scale that settles on the heater, in addition, in hard water dishes are washed worse

But if the dishwasher water is already getting soft after going through the ion exchanger, why the need for special salt?? And then to restore the amount of chlorine ions in the resin, which is why this salt is called regenerating. And the harder the water, the more salt will be consumed.

To determine the water hardness, you can use one of the following methods.

  • The method “by eye”, that is, you take laundry soap, foam or soap some rag with it. If it doesn’t wash and rinse well, the water is hard. In addition, pay attention to how quickly limescale appears on faucets, in the toilet and other surfaces. The faster, the harder the water.
  • The second way involves using a special device or test strip. The most accurate and simple option.

Important! Water hardness varies with the seasons, so it’s best to measure it yourself several times a year.

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According to the hardness of the water is classified into:

How to properly adjust the salt consumption in the dishwasher by the hardness of the water? First, study the manual, it usually describes the whole process. In Bosch dishwashers, for example, you can set 7 levels of water hardness. When the salt runs out, the indicator on the panel will light up, this means that you need to refill the salt. If you use tablets containing salt, then the indicator of the lack of salt can be turned off by setting the water hardness of 0.

But note, even among Bosch models, water at a hardness setting of 0 may not bypass the ion exchanger, but pass through it. And if you do not pour salt, but put only tablets containing salt, it can lead to the fact that the ion exchanger will be clogged, and the water will not come at all, in the end, you will need to change the unit. That is why salt is needed not only to soften water and increase washing quality, but also to keep the dishwasher’s ion exchanger in working condition.

Important! Bosch dishwasher manufacturers recommend using 3-in-1 tablets only for hardness levels below 21 0 dH, if the hardness is higher, salt and detergents must be poured separately.

It is therefore not important how much salt to put in the dishwasher, it is important that it is always there. And how often you’ll need to do this depends on how hard your local water hardness and whether or not the hardness setting on the dishwasher is set correctly. We hope you found this article useful.

How often should I put salt in the dishwasher?

There is no definite period between refills. each user has a different duration. After the first load, the dishwasher could require additional amounts after around 5.10 washes. This is normal, because when you started, you poured “by eye” and may not have reached a sufficient concentration of salt solution.

Subsequently, the frequency of addition also differs. This is influenced by several factors:

Water softness and ion exchanger settings

At high hardness, the softener is set to maximum values.

This allows you to feed a lot of regenerating salt to the ion exchanger in order to regenerate the depleted resin. Because the softer the water, the less you use.

For example: Every 4 to 6 months for moderate hardness.

Softener, improperly set to high values, also increases salt consumption. find out from your local water utility the hardness and mineral composition of the water. You may find that a lower setting is needed and therefore the consumption of detergent is reduced.

Frequency of operation of the washing machine

A kitchen helper that is run twice a day wastes salt faster than a machine used occasionally. Every sink depletes the solution. Therefore, with daily running the crystals lasts for 3-4 months, and with rare running. for half a year.

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Crystal size

Only fill the dishwasher with salt that is specially formulated for it. It has regenerating properties that conventional table salt lacks, and it is free of impurities.

There are many brands of dishwasher salt, and the quality varies. The size of the individual crystals is important in addition to the cleanliness of the composition. The coarser the crystals, the slower the product is used.

For example, Somat has fine particles and Finish has medium particles. I preferred EONIT and Mister DEZ. the crystals are mostly big, not expensive, they last a long time.

All factors combine. If to summarize them, it is clear that the salt is added as often as it is required by YOUR working conditions of the washing machine. keep an eye on the sensor or the cleanliness of the washed utensils.

What influence does water hardness have on salt consumption??

All dishwashers have a device that makes the water softer. the ion exchanger. Without it the appliance would quickly fall into disrepair. because of water heating to high temperatures the heater and tank walls are covered with limescale. This hard sludge is especially dangerous for the electric heater. because of the inability to give off heat normally, it burns out.

The ion exchanger contains resin, which emits negatively charged chlorine ions that attract calcium and magnesium ions, making the water softer. As it is used, the supply of ions in the resin depletes, and with the help of special salt remedies, it is possible to restore the balance. The higher the hardness, the higher the costs. You can determine the hardness by any of the following methods:

  • “By eye. Soap something with laundry soap. a handkerchief or a sock. If there is almost no foam produced. hardness is high. Laundry will not rinse as well. You will also find that high hardness is indicated by the rate at which white plaque appears on your plumbing fixtures. This lime sediment, the faster it appears, the harder the liquid in the water pipes.
  • Special test strips are available. This is the easiest and most accurate option.
  • See a special table which lists the hardness levels for all regions

Water with calcium and magnesium salts is roughly divided into soft, medium-hard, hard and very hard.

Important! The hardness may vary from season to season, so it’s a good idea to measure it every 3-4 months. And depending on the results, adjust the salt dosage.

Tips for using regenerating salt

Be careful! Do not fill the sodium chloride reservoir with detergent. Otherwise it could cause the water softener to break, which can only be repaired.

How often should you put the rinse aid in the dishwasher??

What many users don’t know is that dishwashers know how to dose the rinse aid themselves. That’s why you need to pour not just a little, but as much as you can fit into the special compartment (it is situated approximately in the same place where there is a tray for detergent).

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Really, if your water is soft, the machine can run for a long time without salt. But if your water is hard, we can’t guarantee the dishwasher’s longevity without salt.

Setting the water softener and water hardness

Before filling the salt reservoir, set the amount of salt to regenerate the levatite, t.е. adjust the water softener. This is done according to the description in the booklet for the device.

My personal opinion: The most convenient setup is organized by Bosch, GORENJE. on the panel of the device, keys or knob to select programs. In some companies, for example, Krona, Hansa, the regulator is located inside the tank and a screwdriver is useful to turn it to the right value.

The machine is designed to operate at 7 levels of hardness, and each level will have a different degree of softening of water. To set the correct parameter, you need to determine the hardness of tap water.


Before answering the question of how much salt to put in the dishwasher, it is necessary to answer the question, how hard is the water used.

Many of us already know the answer to this question, because we have noticed how quickly lime scale forms on taps and other surfaces in the bath, kitchen and toilet.

  • There is another way: lather up the laundry soap. If it rinses out well and does not rinse out well, then the water is soft.
  • The way, close to the scientific. to use a special device or test strip, which offer foreign companies.
  • There are already known hardness values for each region. So you can use this data.

Why do you have to know the hardness? The point is that very hard water requires the dishwasher to be filled with more salt. You need considerably less water for soft water.

If you add not enough salt, you will see white stains on the dishes.

The first time you use the dishwasher, you adjust it to the hardness you found.

Pour the reagent into the hole, which is usually located at the bottom of the machine. In order to perform the procedure carefully and not to scatter salt, you need to use a funnel.

Now for more details on how much salt to put in the dishwasher. If the water is very hard, you add a kilogram of salt. Half a kilo should suffice for medium to low hardness.

Usually this amount is enough for several months, but it all depends on how often you use the machine, and what exactly the water hardness value.

It is worth noting that modern detergents already include the necessary substances for water softening. These are tablets that include three ingredients: detergent, rinse aid and softener. Whatever product you use, always pay attention to its composition.

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