Changing your RO/DI filters

[hawk82]

Ive had my RODI since last September. Ive changed the sediment filter once, because it was getting brown. It looks like its gonna need it again soon. When should I change the carbon block, it still looks white. And is the DI ok as long as Im still getting 0 TDS at the end? I make about 10 gallons of water per week give or take.

 

[mindme]

Ive had my RODI since last September. Ive changed the sediment filter once, because it was getting brown. It looks like its gonna need it again soon. When should I change the carbon block, it still looks white. And is the DI ok as long as Im still getting 0 TDS at the end? I make about 10 gallons of water per week give or take.

I got 0 TDS on mine and the RODI water test part of my last ICP showed moderately high silicates and 2ppm nitrates. Also explained why I started getting some diatoms on the sand bed.

I live in Florida and mine need to be changed about every 4 months it seems like. That was after 6 months. I'm just going to ignore the TDS meter in the future.

 

[hawk82]

hmmm interesting, maybe I should just change all mine for the sake of it

 

[monkeyCmonkeyDo]

It depends on your intake water but I recommend changing regular filters every 6 months - 1 year and ro membrane every 5 yrs.
I usually change things when my 0tds starts reading 3-5
-d