I want to drain my open vented conventional CH system to remove rads and flush out the sludge...have found 3 drain points on the system....intend to turn off cold feed to expansion tank and then drain system - anything else that needs to be done before commencement?
Draining the System
- Thread starter Tinkler
- Start date
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little lever on the side and it locks in open posn.DIYnot Local
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