[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Killietalk] Drip emiters vs. valves
I am sure water quality varies per local, but when you are talking of a
partial water change I am not sure how critiacal it is to have 100
percent of the chlorine removed. If you live in a area that has such a
high concentration of chlorine in your water mild aeration may help in
the chlorine removal. In all cases common sense prevails.
George
Wright Huntley wrote:
George,
George & Melanie wrote:
Sounds like you need a water storage drum in your garage. You could
fill that drum from your outside hose. Then let the water sit for a
day or two. This will let the chlorine disapate ...
There is almost no place left in this country, where the chlorine will
dissipate in a "day or two." The typical half-life, now that they have
learned to add a bit of ammonium is much more like 5 weeks.
I don't mean to disparage your advice, but I feel it is dangerous to
let anyone think we are still living in the era when chlorine (not
chloramine) was the disinfectant of choice. Once they found that it
caused carcinogenic compounds, there has been a strong campaign by EPA
to convert *every* municipal water source to chloramine. It won't
dissipate, and using hypo or other old-fashioned dechlor products will
produce a deadly burst of ammonium/ammonia. If pH is above about 7.5
(also EPA mandated), look out!
You have to live in a mighty rural area to still have chlorine as the
primary disinfectant. In my situation I have none, but one or two
wells in the Bishop area still test high enough for bacteria that they
do use it. [I'll be surprised if they get through this year without
adding enough ammonium to form chloramine, tho.]
The best is to be aware and to test and read your water reports. The
big problem is that lethal levels of ammonia are way below the minimum
reading of the test kits we can afford. If in doubt, it is safest to
assume that chloramine is present, and act accordingly.
Wright
To join the AKA see http://www.aka.org/pages/join.html
Archives are at http://fins.actwin.com/killietalk/