tried pump at speed 2 still the same. The system incorporates a 3 port valve and system by-pass after the pump so there is alwsy a circut open for the pump to push round. The pump is located on the ground floor and the header tank in the attic and house is 3 storys.
Hi all
I have a heating system with a combined vent feed pipe. The vent has been teed off just as the feed pipe leaves the tank and the vent pipe loops over the tank. I am having the problem that the vent pipe discharges water when the pump stops this in turn increases the level of the water...