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Posted by HeatPro on December 07, 2009 at 23:37:03:
In Reply to: Water hammering - Steam Radiator posted by VW on December 07, 2009 at 22:56:47:
After many decades standing in the same spot, radiators get out of level and need to be shimmed back up to level to let water in the radiator fall back out instead of waving around to bang inside.
http://www.heatpro.us/steamtree/documents/DC1B7BB16FA9626D002B3017D4D6C633BEDBD296.html