I recently had a look over the pipe and noticed that the hot water cylinder expansion pipe has been plumbed in to vent into the main cold water tank in the loft. Is this normal ?
Hot Water cylinder expansion pipe
Nov 18, 2007
4 Replies
Yes - and the CH / boiler expansion pipe vents into the CH header tank (the small one).
Peter
"Into" or "Over" the tank?
Yes
Both. ;-) The expansion pipe - as in the "feed and expansion" connects to the header below the waterline. The vent pipe should be looped over the top of the tank such that any water would fall from it into the tank
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