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  • For all filter types

  • For all pool sizes

  • Where: in the pool's circulation system

  • When: when required

  • Dosage: 300 ml per 10 m³ to lower the pH-value by 0.1

Always read label and product information before use.

This product is to be used exclusively for the specified purpose in accordance with this description.

  • The ready-to-use concentrated pH-Minus Liquid Domestic is to be used only in conjunction with automatic measuring, control and dosing equipment
  • The addition is done directly from the jerrycan by means of a dosing pump, in the circulation circuit (after the heat exchanger / heat pump) of the pool.
  • Lowering the pH-value: To reduce the pH value by 0.1, 300 ml per 10 m³ are required.
  • The ideal pH-value is between 7.0 and 7.4.


Important notes: Be sure to follow the operating instructions of the manufacturer of the dosing system as well as instructions for use and precautions on the product label. pH-Minus Liquid Domestic is ready to use (never add water). 

Storage in closed original jerrycan in a frost-free and cool environment. Keep away from unauthorized persons.

Product benefits

  • by means of an automatic dosing system. Dosing directly from the jerrycan.

  • Particularly high purity

  • the jerrycan can be left under the Automatic pH regulation for domestic use.

pH-Minus Liquid Domestic is a liquid acid concentrate for continuous pH-value reduction in swimming pool water.

pH-Minus Liquid Domestic works effectively on excessively high pH levels and enables the ideal pH level (between 7.0 - 7.4) to be reached quickly. The formula with 14.9% sulphuric acid has been specifically developed for the care of private pools. 

Dosing is done directly from the jerrycan, by means of an automatic dosing system (Pool Relax®, PoolManager®, Automatic Cl/pH, Automatic SALT).

pH-Minus Liquid Domestic is dosed directly into the pool's circulation system as required and maintains the pH-value in the ideal range of 7.0 to 7.4.

pH-Minus Liquid Domestic is compatible with all disinfection methods (chlorine, bromine, active oxygen), and all filter types (sand and glass filters, cartridge filters...) and all pool surfaces (liner, tiles, silico-marbled lining, polyester).