"~ jan" wrote

"Bob Hobden" wrote:

"yorkshirespambo" wrote ..


When I top my pond up how much dechlorinator should I use. I top up
from
the tap and our water is chlorinated. Do I use sufficient to
de-chlorinate the full pond (it is a fairly small pond), or do I just
use sufficient to dechlorinate the amount of water I am adding?
I have had a few problems with my pond recently so plan to take my pond
down by a quarter and then top a couple of times over the next month.


If you are only topping it up it's not necessary.
A Yorkshire man wasting money, amazing! :-)

The thing to worry about is if the Water Co are flushing the mains to get
rid of the freshwater shrimps, they use an insecticide and it will kill
fish
too. A friend lost all his fish. They normally do it once a year so worth
a
phone call, just ask them if they are flushing the mains in your area
because you want to top up your pond.

OMGosh, is this drinking water they add this to? Are people informed when
it is added?

Yes it's mains water, happens all over the world.
Not directly, they don't want to alarm people, but there is usually a note
in the local paper saying that the mains will be flushed. They just forget
to say it's with an insecticide. :-) If you phone them they may well
prevaricate, you will feel them getting nervous, just insist you know what
they do and calmly ask if it's happening when you do water changes, or large
top ups because you don't want to lose all your fish.


IMHO, yorkshirespambo, you should be doing a water change out, old out,
new
in 20%/week, but depends on what kind of pond you have. Koi need more,
water gardens need less... and depends on your source water, obviously...
insecticides?!!!! Sheesh. ;-) ~ jan

Good way to ensure your pond goes green introducing tap water with it's high
nitrate (fertilizer) levels. With efficient biological filtration, and
especially with plants in the pond, constant water changes are not required.

-- Regards
Bob Hobden
W.of London. UK