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SYSTEM DUMP AND FILL, CONNECT TO EQUIPMENT
1. After 24 hours, stop system flush by closing outlet
valve: rotate 90 degrees so that it points to the right.
2. Open tank valve, this will allow water from the tank
to enter RO processor.
IMPORTANT: Water flow can be very high (5 to 6 GPM).
Make sure outlet tube is secure and running to drain.
TANK DUMP AND FILL
3. DUMP: Slowly rotate to open outlet valve until it is
pointing up to drain tank water.
4. Allow tank to empty. When the flow rate from the
optimized outlet tube significantly drops, the tank
is empty.
5. FILL: When the tank is empty, close the outlet valve
of system to allow tank to fill by rotating valve until
pointing to right.
• Optimized water will begin to fill tank again.
• Water will be flowing from the reject line based on
the flow restrictor your system uses.
6. Repeat steps 3 through 5 for a total of five dumps and
fills.
TDS monitor placement option:
The TDS monitor can be removed from the side position
and attached with hook and loop fastener (provided) to
the front of the processor.
14 | PENTAIR EZ-RO INSTALLATION AND OPERATION GUIDE
Proof April 18, 2022
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1. 1.
Empty, Fill
Empty, Fill
2. 2.
Empty, Fill
Empty, Fill
3. 3.
Empty, Fill
Empty, Fill
4. 4.
Empty, Fill
Empty, Fill
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5. 5.
Empty, Fill
Empty, Fill
FOODSERVICE.PENTAIR.COM
SYSTEM DUMP AND FILL, CONNECT TO EQUIPMENT (CONTINUED)
ADJUST BLEND VALVE
Follow steps 7 through 11 to adjust blend valve to
optimize water to mineral levels per customer's
specifications.
7. Shut off tank valve.
8. Open outlet valve. Water needs to be flowing in order
for the TDS meter to function.
9. Review TDS levels from digital TDS meter. TDS is
measured in PPM or parts per million.
10. Adjust mineral content with the blend valve.
+ To increase mineral content, turn knob counter-
clockwise (lefty loosey).
-To decrease mineral content, turn knob clockwise
(righty tighty).
Monitor consistency when set.
11. Close outlet valve.
12. Open tank valve.
CONNECT TO EQUIPMENT
13. Connect end of outlet tubing to water line to
equipment using the 1/2" NPT by 1/2" push to connect
fitting or other appropriate fitting.
14. Open outlet valve on RO processor until it is pointing
up to allow optimized water to enter equipment.
• Water will begin to enter equipment.
• Complete final check for leaks.
System install and flushing complete.
Treated water is now in use at equipment.
NOTE: The blended water tubing/piping and associated
fittings connecting the RO blended water outlet to
the equipment being serviced should be food-grade
material that meets NSF® Standard 51, 61, or similar,
with a minimum pressure rating of 100 psi (6.9 bar,
0.69 MPa). The RO/blended water may react with
metal piping, creating a corrosive condition in addition
to imparting an objectionable taste. Plastic pipe or
reinforced beverage tubing are generally very good
material choices for RO water distribution piping. The
size of the blended water tubing/piping should be 1/2-
inch (12.7 mm) O.D. minimum.
PENTAIR EZ-RO INSTALLATION AND OPERATION GUIDE
Proof April 18, 2022
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FOODSERVICE.PENTAIR.COM | 15
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