There already is one but thanks for your advice. Wouldn't expect there to be a bypass under a concrete floor but it's like there is a loop or a bypass under the floor, as it's circulating somewhere. I'm going with the one pipe system, will check that out first
Hi
Wonder if anyone has any advice before I go for the powerflush! I recently fitted a new boiler and replaced an old beast gravity hw with no controls. I put the system on an s-plan and everything filled nicely. I have all rads circulating apart from 2 downstairs rads. I had them luke warm and...