Purenex 7 Stage Reverse Osmosis System 100 GPG Per Day - Manual (Page 8)

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STEP 3: MOUNTING THE TANK BALL VALVE (for RD-106 only)
Do not release air from the air valve on the lower side of the storage tank. It has pre-charged at 7-10psi at the factory.
put Teflon tape, 6-8 turns
screw on ball valve tight,
push tubing through
the nut, put tube insert, screw on the nut
the tank can be positioned
laying down or standing upright
STEP 4: MOUNTING THE DRAIN SADDLE VALVE (don’t put in blue area)
The drain saddle valve should fit most standard drainpipe. It
should be installed above the trap and on the horizontal pipe
(1) or vertical pipe (2).
DON’T put on position (3), (4), or blue section
Position the drain saddle in desired location, mark spot. You need
to consider available space for drain tubing
Drill 1/ 4” hole into the drainpipe above the water line of the pipe.
Clean the surface of the pipe.
Pears off the sticky foam pad, then aligns the center hole around
the drilled pipe hole. Then tape it.
Align the drilled hole in the drain pipe with the drain saddle
using a drill bit or narrow screwdriver
put the complementary piece and clamp them together with the
two bolts. (1) Tighten the two bolts evenly. (2) Connect Black
tubing to drain saddle valve.