Can anyone point me towards a resource for testing water that would be good information as it pertains to using it on orchids? Either a home test or a lab send in is fine. I know that my local municipal does this, and provides the data to me. What I want to do is try some different filtration methods to see if I can get the levels more acceptable. Then I wont need to use RO, and waste so much water. I am not even sure this is possible, but I figure it might be worth trying.