"Dimitrios Paskoudniakis" wrote in message

I have mostly plastic pipes, so I don't have to worry about pinhole leaks.
However, since we bought the house (it is now 10 years old), we have had
to replace both sink faucets in the second upstairs bathroom. On the most
recent one, the plumber said there were signs of erosion, some greenish
deposits, and suggested we get his company to give an estimate for a
softener/conditioner system.

I got the estimate, and the plumber who gave the estimate tested the
water, and said that the pH was a little low (slightly acidic). He did
say that this could lead to future failure of faucets and the water
heater, as well as stains/deposits in sinks and toilets. We have had no
stains or deposits ever.

The estimate is $3000 (!!).

Sounds like they may be trying to panic you. . What is the pH? Surely they
gave you a number. If not, they are probably hiding something.

Get your water tested by an independent source (pool places can do pH) and
work from there. While acidic water can cause some of the problems
mentioned, unless you know actual numbers and the potential effects, you
cannnot make an informed decision. Talk to a couple of water treatment
specialists and see if they would be concerned and what solutions they
offer.

Unless we know the numbers, no one here can make a practical suggestion
either.