IMO a TDS meter is a MUST HAVE ON ANY RO UNIT!!!!!! This thing has helped me soooooo much ! when tds starts to go up, time to change the filters! I highly suggest everyone get one! they are pretty inexpensive also! oh and BRS has killer deals on replacement filters for ro units :) BRS FTW!!
So i need to test my ro unit to see if i need to change my filters sooo im looking into getting a tds meter to be on the safe side. I found one on ebay that looks decent so ill probably be ordering it soon.If anyone has one please let me know asap. But anyways i figured i would post a link to the one i found on ebay.