I have just purchased a flat and all the water is switched off and tank drained down. I have just switched on the mains water going into the tank and tested water within flat and everything is fine. However, I have noticed water is gushing out of overflow pipe outside of building.
The system in place is a coldwater tank with cylinder/emmersion heater for water. There is no central heating. I have now drained all the water from the tank and the leak has stopped.
Please advise what I should do to rectify this. Should I fill tank before I open valves into cylinder? Should all valves from tank be open before I open the stop cock?
Any help would be appreciated :cry: