Have had to replace mine 3 times now. Last 2 times had a plumber in to do it. This time did it myself n saved £100. Instructions were good and easy to follow. Most difficult was replacing rubber 'O' ring which is not easy to extract even with crochet needle. Having checked previous boxes found the untouched new 'O' rings meaning the plumbers had not replaced it over the years, which is very unprofessional!! Was expecting delivery at least 5 days after ordering - was at my door the next day. Brilliant. Also, this was the cheapest price anywhere I could find. Well done guys.
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