Testomat 808 indicator 330 141009

This specific indicator is widely used where monitoring hard-water breakthrough is essential, but where operating parameters allow for a minor, controlled residual threshold before regenerating or shutting down:

• Commercial Water Softening Systems: Installed directly on the outlet line of duplex or simplex industrial softeners to constantly verify that the ion-exchange resin hasn't exhausted its capacity.

• Reverse Osmosis (RO) Pre-Treatment: Protects delicate polyamide RO membranes from scaling. An unexpected hardness breakthrough above $3\text{ °dH}$ would rapidly precipitate calcium carbonate onto membrane surfaces, fouling elements and driving up trans-membrane pressure.

• Boiler Feedwater & Steam Generators: Monitors make-up and condensate return loops. Preventing scale formation on heat exchanger tubes maintains optimal thermal efficiency and avoids localized overheating or tube failure.

• Industrial Process Water: Utilized in plating/galvanization plants, laundry facilities, and cooling tower loops where precise water blending or hardness limits prevent chemical precipitation.