Irritatingly, after I replaced the expansion vessel, the pressure relief valve has started weeping. Each day, I need to top up the water in the system. There is a drip coming from the pipe that pokes out of the wall of the house, leading away from the pressure relief valve.
I don't especially want to have to drain down the system all over again in this weather. Can I just put a SECOND pressure relief valve on the outlet? (i.e. downstream of the existing faulty one).
I don't especially want to have to drain down the system all over again in this weather. Can I just put a SECOND pressure relief valve on the outlet? (i.e. downstream of the existing faulty one).