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After reading Mr. Holohan Skimming article

Stewy_2
Stewy_2 Member Posts: 83
butt what if my boiler hasn't been run all summer, will the cold skimming still work (I did run it a couple times to test it out yesterday and today). Also I put some Prue Pro Boiler cleaner in it last season (did nothing for the surging) will that effect the cold skimming.
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