The smallest device in Sentinel Commercial’s successful scientifically-proven limescale prevention range, the 22mm KalGUARD® system is ideal for light commercial premises such as restaurants, take-away outlets and car washes. Comprising a zinc anode unit, water meter and controller – with the latter pre-set to a 22mm commissioning mode – the 22mm device is a true ‘plug and play’ solution that usually takes less than a day to install and lasts for up to 12 years, with minimal maintenance throughout.
Limescale has a particularly significant impact on secondary hot water systems and appliances, potentially causing poor system performance, repairs and higher energy bills. British Water estimates that just 1.6mm of limescale can increase a heating system’s energy requirements by 12%.
KalGUARD protects against the damaging and expensive effects of limescale build-up, avoiding breakdowns and premature capital expenditure for appliance replacement. It works by permanently ‘conditioning’ water via an electrolytic process, a method that is recommended by UK Building Services Compliance Guide to Part L. Independent tests carried out at Cranfield University have proven KalGUARD’s ability to reduce limescale drastically.
When fitted on a rising main, WRAS-approved KalGUARD provides whole-system protection, and can help protect both new and existing systems from limescale build-up. The zinc anode has a lifespan of up to 12 years, and in comparison with other limescale solutions, KalGUARD boasts significant savings on consumables, maintenance and water.
To find out more about the benefits of KalGUARD, call 01928 704330 or alternatively visit