Recent content by thefilterguys

Carbon filters will exhibit no signs of exhaustion through your tds meter. What you want to read is how well your RO membrane is performing (rejection Rate) and DI resin performance. Jim

I hope these plumbing drawings help as it appears you are running tap water into your DI first. I can't tell what the red line is but where you want yout tds meter IN and OUT probes is before and after the DI chamber. What you want to measure is the performance of your RO membrane and DI. Your...