"San Diego Joe" wrote in message
...
"George" wrote:

snip

if added with a vigorous spray from
a nozzle, is about all you need do. When I top off the water, I always
use
city water, and only use a squirt of decholorinator. Never lost a fish
or
plant yet because of it.


I've heard this spray mentioned before. Can you enlighten me? How does
this
get rid of chlorine?

Thanks,

San Diego Joe
4,000 - 5,000 Gallons.
Koi, Goldfish, and RES named Colombo.


Chlorine has a low vapor pressure, and since there is very little natural
chlorine in the atmosphere, it will outgas from water rather easily when
the water is agitated. As proof of this, if you have city water with
chlorine, and you turn your faucet on, you should get a little whiff of
chlorine as the water flows out of the faucet. So if you use a good nozzle
on your garden hose, and pinch it down some, you should get a moderately
dispersed spray and then spray the water at the surface of your pond. The
vigorous bubbling will cause the chlorine to outgas. In addition, some will
be neutralized by unfixed dechlor already in your water It is fairly
persistent), and the rest will be diluted and eventually evaporate since
you are adding a small amount of water to a relatively large pond. Having
said all of this, you should be aware of whether or not your water company
uses chloramine, which is quite a different animal, as it is more
persistent in water, and can be very toxic to aquatic life. Fortunately,
most water companies today are required to neutralize the chlorimine to low
levels before it goes out to their customers. If you have chloramine in
your water, it is recommended to use a dechlor agent that specifically
removes chloramine. Having said that, unless the concentration is
unusually high, you shouldn't have any problems with adding this small
amount to your pond. If in doubt, add some dechlor, but don't overdo it,
because that is just wasting the product. I have chloramine in my tap
water. If I do a 10% water change, I just agitate the water. If I do a
20% change, I agitate the water and add some dechlor, but not a lot. Good
luck.