Des22
New member
Hi, I have stupidly installed a new water pump for basin and shower, which is 11 lts per minute, the old one was 8.7 lts per minute. Now my calorifier is spitting a significant spurts of water out of the TPRV every time I turn on the cold tap and engage the pump, the calorifier is not switched on. Have I overdone the presure please. Thankyou