"Koi-Lo" writes:

Moments before spontaneously combusting Dale Henderson at
was heard opining:

"Koi-Lo" writes:

"netDenizen" wrote in message
.. .
Finally, others have explained that you should let a glass of
tapwater stand for 24 hours before testing pH, because it may change
due to outgassing etc.
=================
Ours does. It goes from 7.2 to as high as 7.6 after several hours.


I got you beat. My comes out of the tap at 7.0. But if I run an
airstone in it for an hour it goes over 8.
===========
They run CO2 gas in the lines to help keep scale down. At least
that's what I was told.

I have a well. Well water is notorious for being full of C02 and for
being very hard.