Will try it thanks but think I twisted it already and just more water came out under more pressure than just it is when it drips out of the overflow. thanks anyway, here goes!
Looking for help with the finishing points to installing the 28c Combi. Have followed the instructions and just filled the system, no leaks but no pressure showing on the pressure dial. The system is full; radiators full and vented, and water in the pump housing. But no water showing in the...