REPP logo banner adsolstice ad
site map
Google Search REPP WWW register comment
home
repp
energy and environment
discussion groups
calendar
gem
about us
employment
 
REPP-CREST
1612 K Street, NW
Suite 202
Washington, DC 20006
contact us
discussion groups
efficiencyefficiency hydrogenhydrogen solarsolar windwind geothermalgeothermal bioenergybioenergy hydrohydro policypolicy
Greenbuilding Archive for January 2000
532 messages, last added Tue Nov 26 17:23:25 2002

[Date Index][Thread Index]

Re: GBlist: nasty bugs in your hot water tank?



Re: your assertion: ...."water would be forced OUT under pressure" ....
consider when a fire-pumper truck is sucking on a hydrant, pulling a
negative pressure. Now your ...."little beasties" will not have ..."to swim
their way in", will they?

    At least that's what we were told when we had to obtain U.L. & IAPMO
approval by passing a double-wall vented test.

=====================================================
> Dr. Carmine Vasile, CEO
> WaterFilm Energy Inc.,
> P.O. Box 128
> Medford, NY 11763
> Voice: 631-758-6271 [Fax: 631-758-0438]
> Email: gfx-ch@msn.com Web: http://oikos.com/gfx/
> =====================================================

----- Original Message -----
From: Matt Duston <mountainsun@pcisys.net>
To: greenbuilding <greenbuilding@crest.org>
Sent: Tuesday, January 25, 2000 1:08 PM
Subject: GBlist: nasty bugs in your hot water tank?


> lots of discussion about what water temp will kill the bacteria, or if
> copper pipes will help, etc.  but is it really an issue?  my (admittedly
> non-medically educated) thoughts:  in order for legionella to breed it
needs
> to get into the system somehow.  this is why swamp coolers got such a bad
> rap for a while; they are open to the atmosphere.  a hot-water tank
however
> is a closed system.  cold water in (from a nicely clorinated city source
or
> a deep, anaerobic well), heated in the tank, and out to your tap.  nowhere
> for bacteria to enter the system; in fact, if there was a break somewhere
> water would be forced OUT under pressure, making it very difficult for the
> little beasties to swim their way in.  am i showing my ignorance here?
help
> me out, people!  anyone KNOW of a case of legionella or its compadres in a
> hot water tank, where there wasn't a catastrophy down-line like sewage in
> the city water?
>
> matt
>
> -----Original Message-----
> From: owner-greenbuilding@crest.org
> [mailto:owner-greenbuilding@crest.org]On Behalf Of Speireag Alden
> Sent: Tuesday, January 25, 2000 9:43 AM
> To: Winston MacKelvie; Green Building List
> Subject: Re: GBlist: legionella, flu, etc
>
>
> Sgrìobh Winston MacKelvie:
>
> >Here's an interesting legionella fact that I just uncovered.
> >Source is the USA copper center.
> >"Copper is biostatic. That means bacteria will not grow on its surface.
Use
> >of copper tube works against outbreaks of Legionaire's Disease, where
> >bacteria grow in and spread from the tubing and other materials in
> >air-conditioning systems not made of copper. Copper surfeces are
> >inhospitable to the growth of legionella and other bacteria."
>
>      Interesting.  Most of my system is PEX, but there is some copper
> in the area of the heater.  I wonder what proportion of copper you'd
> need for such an effect?
>
> -Speireag.
>
> --------------)<<<<0
> Speireag Alden, aka Joshua Macdonald Alden:  Joshua.M.Alden.91 (at)
> alum.dartmouth.org
> Usually found somewhere in the wilds of New Hampshire.
> Nach sgrìobh thu 'sa Gàidhlig thugam?
> ______________________________________________________________________
> This greenbuilding dialogue is sponsored by CREST <www.crest.org>
> Environmental Building News <www.ebuild.com> and Oikos <www.oikos.com>
> For  instructions send  e-mail to  greenbuilding-request@crest.org.
> ______________________________________________________________________
>
> ______________________________________________________________________
> This greenbuilding dialogue is sponsored by CREST <www.crest.org>
> Environmental Building News <www.ebuild.com> and Oikos <www.oikos.com>
> For  instructions send  e-mail to  greenbuilding-request@crest.org.
> ______________________________________________________________________
>



______________________________________________________________________
This greenbuilding dialogue is sponsored by CREST <www.crest.org>
Environmental Building News <www.ebuild.com> and Oikos <www.oikos.com>
For  instructions send  e-mail to  greenbuilding-request@crest.org.
______________________________________________________________________