Kent Marine Maxxima RO Unit question

[tent boy]

I bought replacement filters from BRS and still couldn't get a 0 TDS reading. I have bought these before from them and got back to 0 reading. So I bought a membrane from CF and thought that would do it. Still not under 7-8 range. Have had this running for 2 weeks. Whats the next step?

 

[tropills]

Have someone else test your water.. it's possible there is something wrong with your tds meter.

 

[tent boy]

are those adjustable?

 

[tent boy]

My TDS meter is a dual inline. Are those adjustable?

 

[tropills]

Some TDS meters are, do a search on-line for the type and make unit you have, I know you will need a calibration fluid to set it if it's adjustable.

Sorry I'm not much help.