Quick Advice Please?

I started off using my well water also. Now my TDS of my well water was .05. I though right on I have some great well water. Well I never could get my nitrates below 20 test my well water 20 nitrates.

I then got to thinking I needed to invest in a RO unit for this simple fact. We are on well water fields around us rains the rain water goes into well. I have no clue what was used on those farmers crops that could get into my water. I also thought neighbors who knows what they pour out on the ground etc etc. I don't know what crashed your tank but I have to agree with everyone get you a ro unit and more LR