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Installation
The Add-a-Jon can be installed as a free-standing unit or
it can be enclosed.
1. Determine the location of the Add-a-Jon. Make
sure you will have access to the existing discharge
and vent lines. Make the necessary measurements,
and determine the necessary fittings and piping
that are required. Be sure to observe all local
plumbing codes.
2. Put the tank in position. It must be level to within
1/8" over its entire length. Make sure that nails,
screws, or other sharp objects do not puncture
the tank.
3. For an enclosed installation, the flat portion of
the tank is 5-3/8" high, so it will fit between 2"
x 6" floor joists. Note that you will need to cut
one joist (with 16" centers) and put headers in to
accommodate the 24-1/4" width of the tank.
NOTICE: A floor-flange-extender seal kit (purchase
separately) must be used for this type of under-
floor installation .
Make sure Float
does not hit baffle
Top of
Tank
Baffle
Center Pump Discharge
Under Discharge Port in Lid
Figure 2: Center the pump discharge under the discharge
grommet in the lid; make sure the switch does not hit
the baffle in the tank.
4. Set the pump in the pump chamber with the
discharge toward the right back corner as viewed
from the toilet opening (see Figure 2). Line up the
pump discharge with the 3" hole in the tank lid,
then swing the pump so that the vertical float switch
is shielded (from solids) as much as possible by
the baffle in the tank between the toilet mounting
hole and the pump chamber (see Figure 2). Shim
the pump as required to make it steady in the
pump chamber.
5. Apply the foam gasket (see Repair Parts, Key No. 5)
to the flange of the pump chamber. For best results,
overlap the ends of the gasket about 1/2".
6. Place the pipe grommet in the 3" hole in the pump
chamber lid; this is the discharge seal. See Figure 3
for correct orientation.
For parts or assistance, call Flotec Customer Service at 1-800-365-6832
Switch
Pump
3"
Vent
7. Lubricate the pipe grommet with soapy water and
push the discharge pipe (2" x 32") through it.
8. Install the lid on the tank as follows.
A. Push the 2" discharge pipe down until
approximately 16" projects down through the lid.
B. Glue on the adapter.
C. Pull the pump and switch power cords up out of
the pump chamber and hang them over the edge
of the chamber.
D. Screw the threaded adapter into the pump
discharge by rotating the lid assembly until it is
hand tight.
E. Thread the pump and switch power cords up
through the 2-1/2" hole in the lid.
F. Insert the cords into the split cord grommet (see
Repair Parts, Key No. 3), making sure that the
cord grommet is right side up (see Figure 3) and
outside the pump chamber. Leave yourself some
slack in the cord.
Pipe
Grommet
Pump Chamber
NOT TO SCALE
Figure 3: Cross-section of pump chamber lid and seals
showing correct orientation of seals.
G. Push the lid down into position on the pump
chamber. Start bolts in the four corners of the lid
to keep it in position on the pump chamber.
H. Tighten the discharge pipe into the pump
discharge with a strap wrench. Do not press the
cord grommet into the lid yet.
I. Install and tighten all lid bolts with a 7/16"
wrench (see Repair Parts, Key Nos. 6, 7).
J. Press the cord grommet into the lid.
5
Cord
Grommet
Lip is up
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