No worries.Sorry, I didn't mean to accuse you of lax ro/di maintenance. I'm just wondering why your water didn't change...shouldn't it have? My cheap HM TDS meter recently bit the dust, I haven't replaced it yet. I'm just trying to understand...
I don't know why it didn't. Yeah I thought it would have. I'm kinda confused by it also.
My TDS meter is just a cheap in line meter that I'm pretty sure cane with the unit. I don't use it much I usually just replace all cartridges when both DI chambers have changed colors. Its been almost 2 years might be time for a membrane