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Steinbach Steinbach

pH - (minus) granules

Art.
  • Dust reduced
  • Easily soluble
  • pH-minus is used to lower the pH-value
  • The basis for the optimum effectiveness of disinfectants is a correctly adjusted pH-value

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Product information

pH - (minus) granules, kg ,

Acid granules for lowering the pH-value

USAGE: Water care product. The pH-value of the water is one of the most important factors for an optimal effect of swimming pool disinfectants. pH - (minus) granules are used to lower the pH-value and pH + (plus) granules are used to increase the pH-value. The optimal range for the pH-value is between 7.0 and 7.4. Deviations increase the necessary dosage quantities of other products, or reduce their effect. The measurement can be taken with test strips or tablets.

For private swimming pools only.

DOSAGE: Dissolve 100 g (approx. 75 ml) per 10 m³ of water volume in water and add the mixture to the pool to reduce the pH value of the pool water by approx. 0,1.

07530
GHS05, Ätzwirkung, aetzend
Danger

FAQs from category Adjusting of the pH value:

Cause: Lime precipitates, not filtered particlesSolution: Adjust the pH level to 7.2 to 7.4 (by adding pH-Plus or pH-Minus). If there are suspended matters turn off the circulation pump and remove the flakes on the bottom with the pool cleaner after about 10-12 hours. Lime precipitates in the pool water (turbidity, shimmering white coating on the water surface, etc.) usually disappear shortly after adjusting the pH level and after the addition of a flocculants (while the filter system is running - WARNING: prohibited with cartridge filter systems and filter balls; the filter can stick!). Backwash thoroughly. Clean cartridge filter or replace by a new one.

Cause: Faulty filter function, too many organic substancesSolution: Backwashing. If the filter system is calcified, use an acidic filter cleaner. If the filter system is ok, make a shock chlorination, meaning raise the chlorine level of the pool water up to 3 mg/l for a short time. The addition of flocculant is recommended as an additional measure (WARNING: prohibited with cartridge filter systems and filter balls; the filter can stick!). Backwash thoroughly. Clean cartridge filter or replace by a new one.

Cause: Too little disinfectant in the water, algae growthSolution: Adjust the pH level to 7.2 to 7.4 by adding pH-Plus or pH-Minus. Let the filter system run continuously during the first 1-2 days. For disinfection with chlorine: Wipe dead algae from the pool walls. Remove algae from bottom with a brush and an aspirator. Make a shock chlorination, meaning raise the chlorine level of the pool water up to 3 mg/l. The addition of an algae protection is recommended. Backwash thoroughly. The added chlorine has degraded after a few days. Backwash thoroughly. If the water is not clear after 1-2 days, repeat the procedure. Cartridge filter system: Frequently clean or replace the cartridge. Alternatively, empty the pool completely, clean thoroughly and refill. After adjusting the pH value, treat the pool water with algicide to prevent new algae grow.

Cause: Iron deposits in the waterSolution: Adjust the pH level to 7.2 to 7.4 by adding pH-Plus or pH-Minus. Add flocculant. (WARNING: prohibited with cartridge filter systems and filter balls; the filter can stick!)  Extend the filter runtime, backwash the filter system thoroughly. In the case of a cartridge filter system, clean the cartridge regularly and replace it if necessary.

Cause: Inadequate chlorine dosing, non-degraded organic substancesSolution: Adjust the pH level to 7.2 to 7.4 by adding pH-Plus or pH-Minus. After a shock chlorination up to ca. 3 mg/l this smell will disappear after a short time.

Cause: Inadequate chlorine dosing, non-degraded organic substancesSolution: Adjust the pH level to 7.2 to 7.4 by adding pH-Plus or pH-Minus. If there is too little chlorine in the water, increase the chlorine content. If the chlorine content is too high, reduce the dosage or drain the pool water and refill with fresh water. Again, pay attention to the pH value.

Take a bucket of warm water, add the required amount of chemical for your pool and stir well. Then empty the bucket with the mixture evenly into the pool with the filter system switched on (circulating).

The lid of our chemical articles also serves as a dosing aid.

Our chemistry must be equipped with a safety lock for the protection of children. This requires some strength to open.

Safety data sheets are stored with the respective chemical article on our homepage. If you still cannot find what you are looking for, please contact us via our form on helpdesk.steinbach.at.

Important information

GENERAL INFORMATION: This product is to be used exclusively for the purposes stated in the description. The effect starts immediately after use. All dosing instructions base on experience values and are nonbinding. The product is hygroscopic. It may form into grains in some cases. However, this does not constitute a quality defect. The effect of the product is given at any time. Discolouration of natural stone (e.g. marble) is possible and is no reason for complaint.

Store cool and dry in a light-protected and well-ventilated place. Always transport and store the container in an upright, vertical position.

Use biocides safely. Always read the label and product information before use.

Caution

Hazard statements: H318 Causes serious eye damage.

Precautionary statements: P101 If medical advice is needed, have product container or label at hand. P102 Keep out of reach of children. P280 Wear eye protection/face protection. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P310 Immediately call a POISON CENTER/doctor. P501 Dispose of contents/container to hazardous or special waste collection point.

Contains: CAS 7681-38-1 Sodium hydrogensulphate

Symbol photos

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