MICROFLUSH Toilet Manual 3 March 2005
All Rear Discharge Models: Install inverted P-Trap
supplied with Microflush toilet. Do not glue or connect
fittings until fitting alignment has been checked.
Caution: Outlet is 3/4" off centerline. Make sure toilet
discharge and waste line are in line, not off set.
LF-219 Model: For downward discharge, use molded
P-Trap hose supplied. For rear discharge, use inverted
P-Trap. See page 8 for part numbers.
Remote Models: Position and mount the Remote Valve
Assembly making sure
the Vacuum Breaker is at least 6"
above the rim of the Microflush toilet bowl. Measure air
and water lines to make sure Remote Valve is mounted
within connection distance to Microflush toilet. Run
water and the three air lines from the Remote Valve
Assembly to Microflush.
Caution: For Remote Flush Activators, make sure inside
wall thickness does not exceed 1/2" or large mounting nut
will restrict movement of flush handle.
Mount toilet bowl to floor with 1/4" closet bolts provided.
Screw on bolt caps to mounting screws.
When using a 1-1/2" (38.1 mm) discharge line, each toilet
must go individually to the Marine Sanitation Device or
holding tank. Do not connect more than one toilet to a
1-1/2" (38.1 mm) discharge line.
If a vertical rise is required, the vertical rise must be at the
toilet. The maximum vertical rise is 36". Vertical rise is
not recommended for high use applications. The maxi-
mum horizontal run is 30 feet (9.14 meters) and must
slope a minimum of 1/8" per foot (1 in 100) towards the
Marine Sanitation Device or holding tank. For 1-1/2"
lines, reduce horizontal pipe run 2 feet (.68 meters) per 90
o
elbow. Use long sweep elbows.
Note: The use of regular 90
o
elbows will significantly
decrease the horizontal run.
When multiple toilets are installed, a vented 3" gravity
collection line is to be used with not more than 4 toilets
per 3" line. Manifold the 1-1/2" lines into the 3"collection
line and provide a grade of at least 1/4" per foot towards
the Marine Sanitation Device or holding tank. Vent 3"
line at the manifold point.
Caution: Do not apply stress to align Microflush rear
or downward discharge outlet to waste line. This may
result in eventual damage to seal between Hopper and
Toilet Bowl and cause leaking.
FOR MARINE INSTALLATIONS:
For direct overboard discharge, contact Microphor or
your dealer.
4. WATER CONNECTION
Never install a check valve on the inlet side of the
Microflush toilet.
Integral Models - Connect incoming water from angle
stop to water connector. Make sure WATER IS OFF at
angle stop.
LF-210 Models - Water supply connector is made of
nylon-plastic; be careful not to cross threads.
LF-219 Models - If integral model is connected to a
potable water source, the unit requires installer to provide
a Back Flow/Cross Contamination Prevention device.
Please check applicable jurisdiction for requirements
before installation.
Remote Models - Connect incoming water from angle
stop to Microflush Hose Barb on the Remote Valve
Assembly. Connect the water line from Remote Valve
Assembly to the Flush Rim Spud Assembly. Make sure
WATER IS OFF at angle stop.
START UP
1.Turn ON air supply at compressor.
2.Turn air ON at air shut-off cock (near but not con-
nected to Flush Activator) to blow out airlines for a
few seconds. This procedure should remove any
debris or contaminants from the airline. Turn air OFF
at shut-off valve.
3.Connect airline to Flush Activator. Make sure air
shut-off valve is installed next to Flush Activator. Do
not over-tighten fittings.
4.Turn ON air shut-off cock. Check total installation
for air leaks using soapy water.
5.Turn ON water. Check for water leaks.
6.Flush your Microflush toilet four times, waiting
twenty seconds between flushes to get water through
system and operating regularly. To flush properly,
hold down Flush Activator Handle or Button until
flapper opens.
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