Dosing system takes care of scale and corrosion

 The Combi-Care polyphosphate dosing system from BWT not only protects the central heating boiler from scale and corrosion but offers installers the opportunity to benefit from a regular recurring revenue stream when its long life cartridge is changed as part of an annual service visit. 

“While system filters are useful in protecting the boiler and its ancillaries from magnetic and non-magnetic contaminants, on their own they offer no protection against the effects of limescale or corrosion,”explains Steve Sperring, technical director at BWT UK.  “The Combi-Care on the other hand is just the opposite and is designed to deliver a whole year’s protection from the easily replaced long life cartridge.” 

Suitable for both 15 and 22mm supply with flow rates up to 54 litres per minute, the dosing system works by introducing a minute amount of polyphosphate into the system, effectively treating water before it is heated in the central heating boiler. By isolating the calcium in the water it is able to prevent scale from forming on the heat exchanger. 

“Overlooking the fitting of a Combi-Care, for whatever reason, could be a costly mistake,” adds Steve Sperring. “At an operational level, leaving the boiler exposed to the effects of limescale and corrosion will possibly lead to poor performance or premature failure, but on a business level, installers simply will miss an opportunity to increase the profitability of their annual cartridge change service visit.” 

www.bwt-uk.co.uk

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