RichToyBox wrote:
I add my dechlor directly to the pond during filling. After you have done
it a few times, you know how many of those 30 gallon cans it takes to bring
the water level up one inch or two inches. That gives you a good idea of
how many gallons of water you will be adding. Then add approximately the
appropriate amount and you will be more than fine.

After six years of randomly pouring in dechlorinator, I finally timed
how long it took to fill a 4 gallon bucket with the hose. Then leaving
the hose running at the same force, I timed how long it took to replace
pond water. Before filling the pond, I guessed at how long it would
take, poured in a corresponding amount of dechlor. and set a timer for
that amount of time. When I checked and the level wasn't even halfway to
where I wanted it, I threw in more dechlor. and set the timer again.
After having done this once or twice I know how long it takes when the
pond is at certain levels and can put in more than enough dechlorinator
at the beginning.

I'm also still using the chlorine removing carbon whole house filter,
but the declorinator makes me feel safer (it's a combined product with
minerals and "stuff" for the koi).
--
Kathy B
3500gal pond, 13 pond piggies
Oregon, Zone 6