Illustrative image — actual product may differ.
The BWT Water Testkit PRO determines the local water quality before selecting a filter cartridge. BWT describes a drop test method for this purpose, measuring total hardness and carbonate hardness. From the level of total hardness and the difference between the two values, BWT derives the necessary protection class and thus the decision between decarbonisation, partial desalination, and other procedures. Without this measurement, neither the mixing adjustment at the filter head nor the expected capacity can be sensibly determined. It is advisable to have enough reagents for recurring checks, for example, if the water supply at the location changes. BWT does not document the scope of delivery and reagent quantities of this order number on the product pages.







