Liberty Pumps Ascent ASC-1 Manuel D'utilisation page 5

3-6 EXTENSION PIPE
3-6-1 For installations where the macerating tank is hidden behind a wall, an extension pipe kit K001184 will be needed
(sold separately). The extension pipe is 16" long. One end slips inside the macerator connector and is secured with a
hose clamp. The toilet should be raised by at least 3/8" to facilitate proper gravity flow toward the macerator
box. See schematic below.
3-7 CONNECTION TO A VENT SYSTEM
3-7-1 The product must be vented. The macerating pump has a hub on the lid (1-1/2 inch in diameter). All plumbing codes
require that the case be vented. Connect 1-1/2" pipe to the adapter installed in section 3-1-3.
Do not use an air admittance valve or a mechanical spring-loaded venting device, as these devices are one-
way valves. The air pressure in and outside the macerating pump unit must be equal, a "cheater" vent will
obstruct the airflow one direction.
3-8 INSTALLATION TIPS
3-8-1 PIPE SUPPORTS
All sanitary pipe work must be supported in accordance with the pipe manufacturer's recommendations. Avoid
dipping or trapping, which may cause the build up of residual "solids" and subsequent blockage.
3-8-2 BENDS
Wherever possible, long sweeping bends should be used. Do not use short elbows. If a sweeping 90° elbows are not
available, use two 45° elbows to make a 90° turn.
3-8-3 VERTICAL INSTALLATION FIRST
If vertical lift is required, this must precede the horizontal pipe run.
3-8-4 DIRECTLY VERTICAL
All vertical lifts should rise as directly above the unit as possible, allowing only for the need to clear the toilet tank.
Any initial horizontal pipe run from the unit, prior to a vertical lift should not exceed 12".
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