Hi if i bung the feed & expansion can i change the valve without draining ? cheers
changing a 3 port on an open vent set up
- Thread starter Murf520970
- Start date
I've done it many many times, but there is always a chance of a mishap. Having everything prepared and to hand is a must. Will the old valve come out easily? Are you changing like for like?
honeywell (without the bump comin out) honeywell going in . Worried about the feed being blocked so dont want to drain but the system must be crapped up because this valves only been in 2 yrs
Its essential that you unblock the cold feed for correct system operation. This may be a cause of the system crud. Magnet test all around the H section or feed and vent connection area and fix that problem and to do this means a drain down. Just fitting a new valve and ignoring the system faults is what a cowboy would do.
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