hw bb heat Home › Forums › Archives › Old Bulletin Board Archives › hw bb heat This topic has 0 replies, 1 voice, and was last updated 22 years, 1 month ago by kansas. Viewing 0 reply threads Author Posts 22 Dec 1998 at 7:49 am #281166 kansas When heat comes up there is a sound of water rushing through the pipes. Do the pipes need to be bled and how is that done. The expansion tank is fine and has about 10 psi. Thanks Author Posts Viewing 0 reply threads The forum ‘Old Bulletin Board Archives’ is closed to new topics and replies.