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[Shop-talk] turn off the bubble machine

To: Shop-talk@autox.team.net
Subject: [Shop-talk] turn off the bubble machine
From: Roland Wilhelmy <rwil@sbcglobal.net>
Date: Mon, 24 Jan 2011 22:03:38 -0800
Ever since I had a new electric water heater installed there has been
"air" in the water lines.  This is long after the tank has been filled
and all the air bled out of the system.  Every time that we draw hot
water after it has been unused for 8 hours or more, just as the water
from the tap turns hot a whole lot of "air" bubbles out too over the
next minute or so of flow.

Has anyone on the list encountered this?  I assume that some sort of
electrolytic reaction is generating the "air".  A google search didn't
come up with anything beside that fact that sacrificial anodes are
attacked more fiercely if the tank is supplied with soft water.
Something about the salt.  But nothing about anything generating all
this "air".  We do have softened water.

I am going to call the plumbers who installed the heater but I would
feel better if I had some idea of what is going on before I call them.

-Roland
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