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- 98+% PPM Rejection
- 1 membrane for stealth-RO150 and 2 membranes for the stealth-RO300
- Filters up to 150 GPD (gallons per day)
- Replace between 6 months to 2 years
RO output depends on the source water temperature. At 77°, the system should produce 100% of the rated output. As the temperature drops or increases, so does the output.
THERE ARE TWO INDICATIONS AS TO WHEN TO CHANGE YOUR MEMBRANES
- Test the RO and source/inlet water to see what percentage of the inlet water’s PPM the Stealth-RO150 is filtering out (rejection %). You should see approximately 98% of the inlet PPMs being removed when the membrane is new. If the rejection % falls under an acceptable level (typically 90%) it’s time to change the membrane
- When the flow rate of the product water slows down significantly. This can also happen if your pre-filters are clogged. If you change your pre-filters and the product water still flows slowly then it’s an indication you need a new membrane. When it doubt contact HydroLogic
Flow rates of RO systems are based on source water @ 65 psi / 77° / 500 ppm