Racf wrote:
be a little while. Does your change water contain elevated amounts of
dissolved CO2? Mine does here in MN....

Hmmm... it might, but I'm not sure.

Or even some other chemical reactions could occur that could cause CaCO3
to come out of solution temporarily, but I am no Science wizard.......

Actually... a change in pH would. That's probably it! Thanks!

--
Victor M. Martinez

http://www.che.utexas.edu/~martiv