Matthew,

If you are using "city" water call your city water dept. and ask them for a
copy of the water analysis.

If you have your own well take a sample to a pet store or to a friend that's
really into tropical fish and ask them to check your acid/alkalinity,
calcium/magnesium and water hardness. If they can do anything else that's
probably ok too. If you have a well ask them to check the nitrate level too.
That level should be very low if their is a baby drinking the water.

Post the results here and I'll guess someone smarter than I (that's most
everybody, esp. when it comes to chemistry will post a response that will
help you.

Bob