it's a potterton boiler and when i cut the pipe i just turned off all of the valves in the loft until the water stopped. i opened them all up again when i done the repair. as for the pressure im not so sure.
During a recent DIY project i managed to cut through a water pipe in an upstairs bedroom. I Cut out the damaged section and replaced it with a new peice of pipe. Everything seemed fine, until i noticed that the boiler started to make banging sounds and kept on cutting out. also there was...