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IMPORTANT: Before installing this reverse osmosis system,
make certain your water supply complies with the following
operating specifications. Failure to do so may reduce the
effectiveness of the system and will void the warranty.
SPECIFICATIONS
Thin Film Membrane:
Feed Water Pressure:
Temperature Range:
TDS:
Maximum Hardness
:
†
Sulfide, Iron and Manganese
Chlorine in Water Supply:
pH Limits:
If the hardness of your water is above 20 gpg (342 mg/L), lime
†
scale will build up rapidly on the membrane. Scale buildup will
plug the membrane and make the system ineffective. We do not
recommend these reverse osmosis systems to be used with
water in excess of 20 gpg (342 mg/L) hardness.
A maximum total level of approximately 0.01 ppm sulfide, iron
‡
or manganese is permissible. See your local dealer to reduce
these substances in your water.
PARTS INCLUDED:
Pre-assembled filter system (mounting bracket, encapsulated
membrane element, pre- and post-filter housings and pre- and
post-filter cartridges).
• Storage tank
• Inlet supply adapter
• Drain clamp
• 1/4-inch Tubing
• Tank valve
• Chrome faucet
• Feed tubing
• 3/8-inch Tubing
2 • RAIN GRO-475 Installation and Operation Manual
GRO- 75EN
40 to 100 psi (2.75–6.9 bar)
40–100°F (4.4–37.7°C)
2000 ppm
20 gpg (342 mg/L)
0 ppm <0.1 ppm
:
‡
Less than 3 ppm
3–11
(SEE BACK OF MANUAL FOR DIAGRAM)
SYSTEM DIMENSIONS:
Overall Dimensions:
15-inch W x 5
(38.1 cm W x 12.7 cm D x 43.8 cm H)
Weight:
18 lbs. (8.16 kg)
Tank Dimensions:
13
⁄
-inch W x 9 inch D x 9 inch H
1
2
(34.29 cm W x 22.86 cm D x 22.86 cm H)
Tank Capacity Max:
3.2 gal. (10.6 L)
Tank Air Pressure Empty: 5 to 7 psi (0.34 to 0.48 bar)
Tank Weight (Full):
28.5 lbs. (12.9 kg)
Tools and Materials Required
• Hand or electric drill
(cordless preferred)
• (2) Adjustable wrenches
• Slotted and Phillips screwdrivers
• File
• Safety glasses
• Drill bits: 1/8", 3/16", 1/4", 3/8"
If sink does not have hole for separate faucet:
• Center punch
• Cone-shaped grinding wheel
• 1-1⁄4" hole saw or drill bit
• Safety mask
NOTE: All tools may not be necessary for installation. Read
installation procedures before starting to determine
what tools are necessary.
⁄
-inch D x 17
⁄
-inch H
1
1
2
4
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