[Greenbuilding] Heat Pump HWS - How Safe is the Water?
npyner at ihug.com.au
Tue May 10 02:01:53 MDT 2016
To stir this old pot for a bit longer..........
I picked up further information from Maurice Walsh about safety of water
stored in hot water tanks, particularly concerning Radon. This further
to his report"Radioactivity in drinking water supplies in Western
Is it safe to store water in hot water tanks?
Yes. However, from a radiological point of view, it really depends upon
the amount of radioactive elements that are in the incoming water
source, i.e. radium isotopes. Radon-222 (a radioactive gas and progeny
of radium-226) is believed to be released mainly in the bathroom when
water is released from shower roses. Thus *if* the water source has a
high in radium-226 content then the radon-222 released may be high as
well. Thus *if *hot water for the household is not stored within tanks
and the water is heated via an instantaneous hot water unit then the
level of radon-222 could be the at the same level as water stored within
tanks. The best way to rid the bathroom of radon and the rest of the
home is to ventilate – install exhaust fans and open windows. The radium
isotopes are only harmful if ingested for long periods.
Dee Why Beach NSW
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