Algae & Cyano Low Nutrients

[dkevink]

Are you using RODI, and testing it for 0 TDS. Tap water, or Even RODI with exhausted DI water, can cause bad algae.

 

[cjpitt80]

Are you using RODI, and testing it for 0 TDS. Tap water, or Even RODI with exhausted DI water, can cause bad algae.

I use BRS 5 stage and my Traceable meter reads 1 TDS. Reads 1 for distilled water as well I believe. I talked to the guys at BRS and they recommended changing the filters when it hits 5 TDS

 

[Uncle99]

I would change sediment and carbon at 6 months, the DI at 5 ppm, the RO can go for years depending on source.
This is my second year using same RO filter and it still is removing 95% of TDS, the DI stage removes the missing 5%.
The RO filter can last longer when not allowed to dry