M&F Anti Hammer Water Saver Adaptor Valve Atidf/15 (Doust)
I have a mysterious water hammer all over the taps after a plumber installed a Rheem water heater, replaced two pairs of leaking tap washers from bathroom and basin, putting a new cistern to my toilet.
Water hammer all over the place and it came and went. Two more plumbers came in, couldn’t diagnosis the cause, and all measures suggested only temporarily relieved the hammer but it came back after the plumber left.
Bunning suggested putting a water hammer arrestor along the line and I put in a Doust water hammer arrestor to the toilet cistern…it worked and so far finger cross for 2 days, water hammer disappeared.
Thanks, Doust.