I have a strange problem with my Mira Sport electric shower. When I first turn it on its hot, even at the coldest setting. I have to let it run for a while, hear a thunk from the pipes under the floorboards and the cooler water comes with a bit more pressure. Seems toe it's not full pressure at first and what is there gets all the heat. It didn't always do this. I have a pressure reducing valve to reduce to 3 bar and a water softener (if they make a difference)
Any advice?
Thanks
Any advice?
Thanks