copper leaching in solar thermal system [RE-wrenches]

Tom Lane, Energy Conservation Services tom at ecs-solar.com
Sat Oct 19 11:12:50 PDT 2002


what is the ph of your water /////????? sounds like your ph is below 6.5 ph
or you have too much dissolved  co2  carbon dioxide or oxygen in your water
.. copper will corrode and turn your wife green in the tub or shower if the
ph is 6.5 or lower . the only time that is appropriate is around Halloween
too much sulfur can also effect copper .   the problem could be the copper
plumbing in your home .  am cuno  800 222 7880  www cuno.com makes metering
equipment to meter sodium hydroxide into your well water etc if it is too
acidic   ----- Original Message -----
From: "Todd Cory, Mt. Shasta Energy Services" <toddcory at finestplanet.com>
To: <RE-wrenches at topica.com>
Sent: Saturday, October 19, 2002 1:35 AM
Subject: copper leaching in solar thermal system [RE-wrenches]


> I have a personal concern about my home's solar thermal system. Ever since
I
> put it in 5 years ago the hot water appears to be carrying large amounts
of
> copper as is evident by the shower walls and floor (and my wife's blond
> hair) turning a light shade of green. I am totally baffled by why this is
> happening.
>
> The system is a simple 2 flat plate, 2 pump, glycol system, all copper
with
> SS flat plate heat exchanger. I maintain the water heater's anode and just
> replaced the old one with a new magnesium one... so what would be causing
> the copper to be leaching from the pipes into the hot water?
>
> I rarely do solar thermal systems for others, but when I do I want to make
> sure they are configured so they will last. I worry that copper leaching
> will eventually leave the pipes thin and prone to leaking. Anyone have
> experience with this situation or have a clue on what might be happening?
>
> Todd
>
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