I have something similar but it sits on the counter. 3 separate filters, one changes once a season and the other two change once a year. I get 20 to 30 tds with normal tap water and 0 to 2 with this which is most likely from the cup.
I have something similar but it sits on the counter. 3 separate filters, one changes once a season and the other two change once a year. I get 20 to 30 tds with normal tap water and 0 to 2 with this which is most likely from the cup.
Wow, your normal tap water is pretty clean to begin with.