Sam Hopkins wrote:
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

.hmmmph our well water ph here runs about 8-9 and will disolve a copper pipe in a year or two
in 1999 they put in a new subdivision an school near here and have had
to replace all lthe copper pipes with pvc because of leaks, a real pain
when the pipes are in under a concrete slab

John Rutz