The cold feed pipe from the bottom of the tank goes down to the airing cupboard to the pump then to the motorised valve. The pipe does run horizontal for about three feet due to the position of the tank. We have made sure that there is as much slope on the pipe as we could get.
I am in the middle of a loft conversion and have moved my water tanks to a new position. I have put the hot water header tank as high as i can to maintain as much pressure as i can. The expantion tank i have positoned on top of that. Since doing this the expantion tank has become part of the...