"Sam Hopkins" wrote in message
.. .
If your PH is 7.0 it will leech and be dissolved into the water column
and
build up and affect your fish. If your PH is 7.0 it will precipitate out
and not affect anything. I know this from treating acid mine drainage.

Sam

P.S. Most dechlorinators now a days are also heavy metal removers.
snip

Sam...I'll take your word for it, but I think I'll go with PVC. It's cheap.

BV.
www.iheartmypond.com