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INSTALLATION REQUIREMENTS
This product is for commercial use only and must be installed and maintained in accordance with manufacturer' s
guidelines and local regulatory plumbing and electrical codes.
LOCATION
The system should be installed indoors and close to:
• RO processor: The hydropneumatic (HP) tank can be
no further than 10 feet from the RO processor due
to the tubing connections.
• Water source
• Drain (within five feet of unit)
• Equipment served (within 25 feet of unit)
Do not let the processor or storage tank freeze or be
exposed to rain or direct sunlight.
WATER REQUIREMENTS
Feed Water
Adequate flow and pressure of water to the unit is
essential.
Water supply should be:
• Cold water only
• Minimum 50 psi dynamic pressure, maximum 100
psi static pressure
• Supplied by a dedicated 1/2" water line to the installation
Install a full-flow ball valve and pressure gauge with 1/2"
female pipe thread (user supplied) for connection to
installation hardware provided with the system.
Feed-water chemistry
Operating a system on water supplies outside of these
parameters may lead to premature membrane failure.
Feed TDS
Feed pH
Hardness
Free chlorine
Turbidity
Iron (Fe)
Manganese
Hydrogen sulfide
Silica
6 | PENTAIR EZ-RO INSTALLATION AND OPERATION GUIDE
Up to 1000 ppm
5 - 10
<12 grains
<3.0 mg/l
<1.0 NTU
<0.1 mg/l
<0.05 mg/l
0.0 mg/l
<20 mg/l
A water analysis must be conducted before installing
the system, or the required information can be obtained
from your local water utility. If your water analysis
shows that any of these parameters are not within
range, additional pretreatment and/or higher frequency
of maintenance may be necessary. Contact your
Everpure distributor for assistance.
The membrane can be fouled by:
• Silica
• Flocculants such as alum or cationic polymers
• Hardness, iron, manganese and hydrogen sulfide
The presence of silica or flocculants in the feed water may
require special chemical pretreatment or more frequent
membrane replacing. Please note that membrane failure
due to fouling is not covered by the warranty.
DRAIN
The drain should:
• Be located within five feet of the unit
• Have a locally compliant air gap
The drain must:
• Allow a minimum flow of two gallons per minute
• Be accessible for system set-up and service
STORAGE TANK
The tank must be located 10 feet or less from the water
processor unit. The floor beneath the storage tank
should be smooth, clean and free of sharp objects that
could scratch or puncture the bottom of the tank.
OPTIMIZED WATER LINES TO EQUIPMENT
Tubing, piping and associated fittings connecting
optimized water lines to equipment should be food
grade material that meets NSF Standards 51 or 61 with
a minimum pressure rating of 100 psi.
Optimized water may react with most metal piping
imparting a bad taste. Plastic pipe or reinforced opaque
beverage tubing are acceptable choices for optimized
water distribution. A 1/2" or larger inside diameter
tubing or hose will minimize pressure drop.
FOODSERVICE.PENTAIR.COM
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