Harvey Water softeners has made drinking, washing and everything to do with hard water in London a thing of the past. The company itself is very professional. The plumber who was appointed by the company was very professional, courteous and clean. He did a very good job of fitting the device itself and explained how to use, clean and refill the salt etc. Although the first appointment was cancelled last minute due to unavailability it was worth the wait. The water now is so soft that you do not need to use the same amount of soap, liquid to bathe, wash etc. The water also tastes different and so does the food due to the water used. I would definitely recommend Harvey Water softeners to anyone.