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Failure Mode: Any chlorine not contained by the carbon filter will leak to the R.O. membrane and cause
irreparable damage to it. Always replace the carbon filter before it’s time. A damaged R.O.
membrane costs over ten (10) times more to replace than a carbon filter.
4. Reverse Osmosis (R.O.) Membrane
Test: Microprocessor monitors totally dissolved solids (TDS) removal capability; owner needs to
RECORD FLOW RATE OF PRODUCT WATER 24 TO 48 HOURS INTO NEW MACHINE
OR MEMBRANE USE. EVERY TWO (2) MONTHS THE FLOW RATE IS TO BE
MEASURED and if the rate is lower than the initial rate by at least fifteen percent (15%),
temperature compensated, the membrane needs cleaning (refer to Reverse Osmosis [R.O.]
Membrane in Section VIII on page 27).
Replace/Clean Clean at least once a year. (Refer to Membrane Cleaning on page 27). Replace if both acid
Frequency: and alkaline cleaning DO NOT return the flow rate or TDS to normal levels, indicating membrane
damage.
Failure Mode: Clogged, either through mineral or biofouling, thereby reducing yields, or damaged by chlorine,
thereby raising TDS level in the product water.
WARNING: FLUSH ALL REPLACEMENT MEMBRANES BEFORE USING. UNPLUG
MACHINE and FOLLOW STEP #6 THROUGH STEP #10 OF THE
INSTALLATION PROCEDURE REGARDING SYSTEM FLUSHING. (Refer
to page 12 and page13).
ATTENTION: TO REDUCE BIOFOULING, IT IS RECOMMENDED THAT A
MINIMUM OF 12 GALLONS (45.42 LITERS) BE VENDED EVERY 72
HOURS. THE LESS THE IDLE TIME BETWEEN VENDS, THE LESS
LIKELY BIOFOULING IS TO OCCUR IN THE R.O. MEMBRANE and
FILTERS.
5. Vent Filter
Test: Open cap on filter and visually inspect for dirt accumulation. Check monthly.
Replace/Clean Replace as required and at least once a year. KEEP FILTER DRY. A WET FILTER IS A
Frequency: CLOGGED FILTER.
Failure Mode: Clogged caused the pump to create a vacuum in the water storage tank, which may collapse
and crack the tank.
6. Polishing Filter
Test: Check by tasting the vended water; replace when odor is detected in the dispensed water.
Check monthly.
Replace/Clean Replace as required and at least once every three (3) months.
Frequency: