One of the freebies I got with my tank purchase was a 4 stage RO/DI system it looks brand new. The filters are white everything about looks new. It did have some water in it and I’m not sure from when could be 3-4 years old. So I have been running it for hours to get the old water out I bought a inline TDS meter for it I get 124 in and O out. Is there anything I should have to worry about or is it good to go?
Or should I just get new filters?
Or should I just get new filters?