You're not alone Peter, I just tested my own tap water and it also registered
a 7.5! I wonder how common this is with other San Franciscans, I always
thought our water had a much lower pH. Charles Brewer wrote that RO units
don't lower the pH, and that I'll also have to use a water softener with the
unit. When I kept a lot of tropical fish a while back, I used a bottled
product made for aquaria to soften the water, after I fill a container with
the RO filtered water could I just put the stuff for fish in it to take care
of the pH, or do these things contain other substances that are bad for CP?
Those of you with RO units who also have hard tap water, what do you use to
soften it?
Regards,
Demetrios