ro unit

[jose hernandez]

so i was making ro water for a water change added salt let mix and decided to test my phosphates using my ulr hanna checker got a reading of 0.04 i have a 7 stage brs pro kit i recently changed the membranes carbon sediment resin what could this be

 

[WIReefer]

What kind of water storage bin are you using?

 

[jose hernandez]

brute 32 gallon

 

[jose hernandez]

tds meter reads 0 on all 3 stages

 

[JumboShrimp]

I’m sure you’re experienced, so this is a ‘just checking’ question, but after the replacement did you a) back-flush for about 5 minutes, and then b) test the TDS after about another 5 minutes of making water— just to make sure the unit had settled in (for the most accurate reading)?

 

[jose hernandez]

Yea. I did flush Bit I didn’t test I changed them about a 3 weeks ago I never had a problem before something just told me to test