Pentek RO-2500 Installation And Operating Instructions Manual page 8

2 - INSTALLATION
4 - Installing the Drain Clamp
NOTE:
• If you have a single-basin sink with a disposal unit, call your
local plumber or installer for options.
• 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 (see diagram on previous page).
(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 centre of the clamp hole is
slightly higher (about 1/16") than the centre of the drilled
hole. Tighten the clamp securely.
(E) Screw the plastic compression nut onto the drain clamp
until hand-tight.
5 - Connecting the Faucet to the Drain
CAUTION: 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 countertop and
below the faucet.
(A) Align the larger reject (3/8") tubing from the faucet with
the compression nut on the drain clamp. Create as
straight and smooth a path as possible with the tubing. Do
not kink tube. 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.
4
A
D
5
A
7
6"
B C
E
3/8" Tube
B
E
N
G
L
I
S
H