Electrolytic system controls limescale
Sentinel Commercial’s KalGUARD device for controlling limescale uses electrolytic technology to achieve overall cost effectiveness, performance, ease of installation and low maintenance. The device comprises a zinc anode unit, copper cathode, water meter and controller. It permanently conditions water by dosing it with a very low level of stable zinc from the anode.
The result is for naturally occurring calcium-carbonate crystals to form as soft argonite, which does not form deposits, rather than as hard deposit-forming calcite (limescale).
Electrolytic technology is recommended in the compliance guide to Part L. Independent testing at Cranfield University has demonstrated KalGUARD’s ability to reduce limescale.
KalGUARD is WRAS-approved and can treat an entire system when installed on a rising main before pump and booster sets. Its success has been demonstrated with all types of water heaters from leading OEM providers.
Once commissioned, KalGUARD requires only a bi-annual service if the system filter is fitted. No consumable are required for ongoing operation, and the zinc anode last for up to 12 years.
KalGUARD comes in a range of sizes from 22 to 108 mm.