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RO Question
Posted: Mon Dec 29, 2003 9:44 pm
by snoopdog
Which cartridges do you change out at 6 months ? Whats a decent place to get them for my spectrapure.
Posted: Mon Dec 29, 2003 10:36 pm
by Scott
They sugest changing everything except the membrane at 6 months to a year. I think the exacttime depends on the quality of your tap water and is very variable. Do you have a TDS meter? I would think that using a TDS meter is a better indication of when to change them.
Posted: Mon Dec 29, 2003 10:52 pm
by snoopdog
Yeah but it just has a dummy light.
Posted: Mon Dec 29, 2003 10:58 pm
by Scott
I know Shawn has one and I am sure that lots of other people may have them. May be you could borrow one or take some RO water with you to the next meeting. Do you have DI? Is it the color changing resin?
Posted: Tue Dec 30, 2003 6:35 am
by snoopdog
Yes it is DI, what color does it change to ?
Posted: Tue Dec 30, 2003 6:57 am
by ShagMan
I watch my output with a TDS meter (yes I have one that reads PPM's)... my tap water is about 40ppm, I keep my output below 4ppm or so, when it gets over that much I change out the DI, the two carbons and the sediment. I bought my RO/DI from, and buy replacement cartridges from Walter @ Air, Water & Ice, in FL... costs $50 for a 4 pc. kit, plus a few bucks shipping.
Posted: Tue Dec 30, 2003 6:58 am
by ShagMan
That reminds me, has anyone else checked their tap water for PPM's TDS? Mine seemed actually reasonable at 40ppm's, I've heard of a LOT worse.
Also, I have a color changing DI resin, and it changes to blue when it gets used up, if I remember right... mine's starting to change, I'll look tonight to make sure what color it is.