i had a new one of the above installed 2 weeks ago. After it kept lossing pressure a new heat exchange unit was fitted. It is still lossing pressure after this, going form 2 bar to less than half a bar in 24 hours. A lot of water seems to be coming out of the pipe at the bottom which i have measured at just over 1 litre an hour.

I am told this i 'within norms' but on my calcs this means the boliler is loosing over 25 litres of water a day which doesn't seem right. My old keston had very little leakage

am i right to thing there is stil something wrong?