Pump position

[Gasguru]

Move your cylinder stat down - about a 1/3 up from the base is ideal. Cut carefully and fill the old cutout hole.

Make sure the water level in the F&E cistern is only say 50mm above the feed outlet when the system is cold. Bend the float arm down if necessary.

 

[charlie_parker]

yes welling up cold feed pipe not pumping over. Turned pump up to 2 and 3 and apart from bigger gulp from tank when pump switched on, not much difference. Tank gets a little warm, but I guess its bound to if the 1/23 of the system volume is expanding into the tank. Where else could it go?

Water level correct and the only bypass is an auto bypass just below the 3 way valve.

No overflow or tank level not increasing. Could all be ok?