Decipher My Water Report?

[PlumCrazy]

I’ve been watering my big box store Phalaenopsis with my tap water for years and they seem to be doing fine. As I expand my collection, are there any types that would not do well with this water? Also, here is a list of my current “windowsill” orchids:

-Coelogyne mayeriana x self

-Galeopetalum Starburst 'Parkside' AM/AOS

-Miltonia Bert Field 'Eileen' AM/AOS

-Cattlianthe Jewel Box 'Dark Waters' AM/AOS

-Dendrobium spectabile ('short 2N' x '4N shorter')

-Brassolaeliocattleya Sweet Sarah 'Sweet Vision' x Eagle Island 'Sangria' AM

-Wilsonara Firecat 'King Snake'

-Phalaenopsis Mini Mark

Typically I water once a week by taking them to the sink and running water through the pots. I also fertilize once most weeks using a spray bottle, trying to wet all of the roots thoroughly without having much water come through the bottom of the pots.

Also, we just installed rain barrels, so hope to switch mostly to that when it's above freezing. Thank you!!