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Posted by Harold hydronicnetwork.net on February 17, 2004 at 15:51:50:
In Reply to: air in baseboard pipes posted by Ripple on February 17, 2004 at 14:16:47:
" I also noticed the air vent/scoop has a lot of mineral deposits and is freshly wet. "
The mineral deposits indicate that the water has been evaporating from the surface for a long time. The pressure reducing valve has probably clogged from all the filling.
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