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gb 142 revision air vent leak

madtom Member Posts: 1
I am looking to replace the part. From what I can tell from the few pictures on the net of this part , it looks like just the cap is the replaceable part. The float, plunger set up underneath looks like it gets installed on the new cap. I was wondering if anybody has gotten into one of these.. I was wondering if it could be disassembled, cleaned up and reinstalled. Not sure what the internals look like except for what I can see in a Buderus manual. It's leaking pretty bad and I have some teflon holding back the tide at the moment.