View Full Version : Tds ?

12/29/2010, 07:29 AM
At what point do you change your media out? As soon as it reads 1, or do you wait for something higher? I know at 1 you start adding the bad stuff I'm just curious what everyone else recommends.

12/29/2010, 07:36 AM
I wait until it reaches .003 TDS. I know some reefers will change theirs at .001, others wait until .005 or higher. My water is dirty (430 TDS), so I have to run two DI filters in series to get my TDS down below .025, so I try to get a couple of extra weeks out of the filter by allowing the water to get to .003.

12/29/2010, 07:37 AM
as soon as mine starts to read anything other than 0 I change them out