The pump was replaced and tightened up into place. There are two ball valves;
either side of the pump. The flow of the water through the pump is right to left.
When I was re-filling the pump, the left hand ball valve, ie. where the water goes after the pump, started to leak from the central spindel.
Other threads suggest that ball valves do this if they are old and need to be replaced. I have a spare but I can sombody please advise me, bearing in mind it is on the other side of the pump, if the system needs to be drained, or can I remove the valve as it is without flooding my house?
Thanks, and apologies if this is a dumb question, I'm new to it all.