RO/DI correct ppm for water

Reefer26 · #1 12/20/2007, 04:18 PM

just got a tds meter fr my RO/DI unit wanna know what range the ppm should be to determine the water quality?

jeffbrig · #2 12/20/2007, 04:27 PM

0

Sk8r · #3 12/20/2007, 04:42 PM

0

a2fire2i · #4 12/20/2007, 04:49 PM

were you looking to test the effectivness of your unit, or just looking for the 0 number as already provided?

Rogger Castells · #5 12/21/2007, 12:10 AM

You should get about 95% rejection out of the ro membrane, so only 5% TDS should be coming out of the clean side of the RO membrane into the DI, the DI should polish all of this excess and leave the water at 0 TDS.

Example, if your tap water has a 140 TDS reading (not uncommon) you should only get 7 TDS out of the RO membrane, then goes into the DI cartridge and becomes 0.

Hope that helps

Reefer26 · #6 12/21/2007, 04:18 AM

thanks

Reefer26 · #7 12/21/2007, 04:20 AM

everyone!!!!

bckane · #8 12/21/2007, 09:45 AM

0