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Direct hot Water Cylinder and Cold Tank not Filling up

Postby Dazzi13 » Wed Feb 05, 2020 5:33 pm

Right a new cylinder and tank has been installed, 15 gallon cold header tank put in as it only feeds a bath and one sink in an annex.

The cylinder fills to about half way then refuses to fill anymore from the header tank that fulls completely back up and doesn't push through. Done this a few times as I thought Air locks may be the issue.

Is this an issue with the cold header tank only being 15 gallon do I need a 25/40+ tank? It's feeding a 400x900 cylinder. Is the pressure in cylinder pushing back and not allowing anymore water to come through? It's got me a little baffled as I thought the 15 gallon tank would have been enough.

Thanks in advance.
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