yeah bonedog, follow the instructions on how and where to take the sample from and then drop it in the mail. A couplke weeks later you will get the results back. if you have a water softener you will need 2 kits one before and one after the softener. They dont test for pathogens but do test for mineral content or TDS. I use these to set my water softener up and check it once to twice per year to make sure there are no changes. It will help you figure out if you are maximizing your di resin or wasting your time. I will be in Tulsa tomorrow and will drop some off, I'm waiting a bigger shipment of test kits but should have enough to get you guys started,
Thanks,
Jilge