Changing RO/DI filters (1 Viewer)

[Scott Zurek]

I just bought my first RO/DI system and I am wondering how do I know when to change filters? How many gallons will I get out of my system before I need to replace my filters? This is the system I bought.

Aquatic Life RO Junior 4-Stage Reverse Osmosis Unit 100GPD
https://www.fishtanksdirect.com/aquatic-life-ro-junior-4-stage-reverse-osmosis-unit-100gpd.aspx

 

[RSnodgrass]

Do you have a tds meter?
How big is your tank again and how often do you intend to be doing water changes if any?

 

[Nickz]

Looking at the link, did you also get the not included di chamber?

 

[Scott Zurek]

Looking at the link, did you also get the not included di chamber?

Crap. I didnt notice it was sold separately. I am looking for one now.

 

[Scott Zurek]

Do you have a tds meter?
How big is your tank again and how often do you intend to be doing water changes if any?

The tank I'm getting is a 75 gallon and im planning on 10 percent every 2 weeks.

 

[RSnodgrass]

Best way to test is a TDS meter after your RO membrane and after your DI resin.

 

[HouseofStark]

I feel this is something you should guess/cheap on. Start with water issues...always fight water issues

Prefilters I track by pressure..once I start to see a drop...time to change (otherwise every 6 months)
Inline TDS meters between RO to DI and DI to product bin/tank at minimum (I run separate resin beds, so I have one in between each bed, when number increase or color change has happened, replace just that bed)

How much you get out of the system, depends on how efficient your setup is, (pressure and flushes), and how "dirty" your water is