Having issues with water hammer, I have a megaflo with balanced hot / cold using a heat stadia 3 bar prv, this seems ok as getting 3 bar at taps with test gauge, the outside tap is between the house incoming stop valve and the 3 bar PRV and that is showing just over 4.5 bar. If I switch a hot tap on/off quickly then no hammer if I do same with cold get a thud, I assume the hot is arrested by the megaflow internal baffle. Watching the test gauge on outside tap it will jump to +6 bar from about 4.5bar when a cold tap is switch off quickly and not move off 4.5bar when same is done to hot.
So how do I resolve this? some sort of expansion on cold side but where before or after the 3 bar prv?
So how do I resolve this? some sort of expansion on cold side but where before or after the 3 bar prv?
