RO filter changes????

shaginwagon13 · Jul 20, 2008

I bought a TDS meter today and when I tested my RO/DI water it read 22 ppm which I know is too high. How do I know which one of the filters to change on my unit to bring it down to 0? I use a Coralife RO unit...

http://www.oceanicsystems.com/products/pure-flo-ii---3-canister-systems.php#

Thanks!

kau_cinta_ku · Jul 20, 2008

what is the reading of the RO water only and what is the reading of the tap water? what is your water pressure?

kau_cinta_ku · Jul 20, 2008

oh I just noticed this is an RO system. did you add on the DI cartridge?