Pentair Pool Products PB4RO-75, User Manual

Page: 8 / 22

INSTALLATION continued
6. Connecting the Water Supply Adapter
A. Determine the length of 1/4" white plastic tubing needed
to connect the inlet (white collet) on the left side of the
filter with the water supply adapter. Be sure to allow
enough tubing to prevent kinking and cut the tubing
squarely. Place a mark 5/8" from the end of the tubing.
B. Wet tubing with water and insert into water supply
adapter 5/8" until mark is flush with fitting. Repeat
inserting other end of tubing into inlet of the head
assembly.
7. Installing the Drain Clamp
NOTE: If you have a single-basin sink with a disposal
unit, call Technical support at 1-800-279-9404 for
options.
NOTE: Before installing the drain clamp, check the
drainpipes under the sink for corrosion. Corroded
pipes should be replaced before continuing with
installation.
A. Attach the drain clamp to a vertical section of the
drainpipe, about 6" above the trap. Make sure the
opening on the drain clamp is facing towards the
drinking water faucet.
B. Using the fitting hole of the drain clamp as a guide, drill
a 1/4" hole through one side of the drainpipe.
C. Remove the drain clamp from the drainpipe and enlarge
the hole with a 3/8" drill bit. Use a file to remove rough
edges from the drilled hole.
D. Make sure the black rubber gasket is adhered to the
inside of the drain clamp and place the drain clamp
assembly over the drilled hole. Look through the hole
and position the clamp so that the center of the clamp
hole is slightly higher (about 1/16") than the center
of the drilled hole, see Figure 11. Tighten the clamp
securely.
E. Screw the plastic compression nut onto the drain clamp
until hand-tight.
A
D
E
Figure 11
8. Connecting the Faucet to the Drain
NOTE: This is a gravity drain line. Any loops, kinks or
sharp bends must be eliminated before proceeding.
Failure to create a straight line to the drain may
result in reject water leaking through the air gap
in the faucet onto the counter top and below the
faucet.
A. Align the 3/8" red tubing from the faucet with the
compression nut on the drain clamp. Create as straight
a path as possible with the tubing. Cut the tubing
squarely below the nut and remove the internal and
external burrs.
B. Loosen the compression nut two complete turns. Insert
the tubing into the nut until it stops. Tighten with fingers,
then tighten 1 to 2 turns with a wrench.
A
B
Figure 12
6"
Figure 9
B C
Figure 10
8 • JA12 Model PB4RO-75 Undersink Reverse Osmosis System