INSTALLATION CONTINUED . . .
8. Connecting the Storage Tank to the System
When tank is full, it weighs approximately 28.5 lbs. (12.9 kg) Provide
CAUTION:
ample support under the tank.
(A) To prevent leaks, apply 3 or more wraps of plumber tape to threads on tank.
Thread the tank valve onto the top of the tank opening. Turn tank so handle is
in line with tubing.
The tank/valve connection will leak if not properly sealed. plumber tape
CAUTION:
will normally seal the threaded connection.
(B) Locate the remaining length of 1/4-inch tubing. Place a mark on the tubing
5/8-inch from one end. Moisten the marked end of the tubing with water and
insert with a twisting motion into the port of the tank valve until the 5/8-inch
mark is flush with the quick connect fitting. Then locate the tank near the
system's installation area.
(C) Cut the tubing to correct length. Install free end of tubing into white quick-
connect fitting on the post filter tee on the left side. Ensure the tubing does
not kink.
(D) Place entire system over mounting screws on wall and slide down.
Make certain system is firmly attached to wall to prevent it from falling
CAUTION:
and possibly becoming damaged.
NOTE: Use caution not to bend or pinch the tubing behind the system while
attaching to mounting screws.
9. Connecting the System to the Water Supply Adapter
(A) Locate remaining length of 1/4-inch plastic tubing.
(B) Place a mark on the tubing 5/8-inch from the end. Moisten the end of the
tubing with water and insert with a twisting motion push into quick connect
fitting on the left side of system. Depending on the installation, the system
may need to be removed from the mounting surface to access the left side of
the system.
(C) Cut the tube to a length that will allow connection to the Water Supply
Adapter. Ensure the tubing does not kink. Place a mark on the tubing
5/8-inch from the end. Moisten the end of the tubing with water and insert
with a twisting motion push into quick connect fitting on the Water Supply
Adapter.
10. Faucet Operation
(A) For controlled water flow, push the handle down.
(B) For constant water flow, lift the faucet handle to lock it in the open position.
11. System Start-up
NOTE: The reverse osmosis membrane is treated with a food grade sanitizing
agent that may cause an undesirable taste. Although it is not harmful, it
should be flushed from the system.
NOTE: The post-polishing filter may contain fine black carbon particles. These
fines are harmless, but may make the water appear gray in color. The
carbon fines are flushed from the system with the first tank full of water.
NOTE: The RO system does not produce a high volume of water on demand as an
ordinary filter does. Water is produced at a slow, drop-by-drop rate. The
system requires about 2 to 4 hours to fill the storage tank. As water is taken
from the tank, the system automatically starts the cycle of replacing the
water and then stops water production when the tank is full.
8
1/4" Tube
5/8"
B
9
1/4"
Tube
INLET
WATER
DRAIN
TANK
10
Closed Tank Valve
11
PENTEK GRO-2550 Installation and Operation Manual • 7
A
Apply
plumber
tape
A
5/8"
16mm
5/8"
16mm
C
FAUCET
CHECK
AUTO
VALVE
SHUT OFF
VALVE
B
SEDIMENT
CARBON
CARTIRDGE
CARTRIDGE
FRONT VIEW
A
Push Down
B
Push Up
A
Open
Tank Valve
B
Counter-
clockwise