Liberty Pumps Ascent II-ESW Manuel D'installation page 17

Water backs up into shower tray
Alarm is not activated

Water backs up into shower tray
Alarm is activated

During the draining of the bathtub the alarm
sounds and / or water backs up into the toilet
Macerator is noisy when running
Air lock
Application
General plumbing
Blockage or inadequate slope of pipe
The inlet flappers of the Macerator are
not functioning
General plumbing or system is backing up
Damaged Impeller
Volute inlet clogged
Internal hose is damaged
Air lock
Incoming flow rate is greater than
pump capacity
Check valve failure of the Macerator
General plumbing
The inflow is greater than the
macerator can handle
General plumbing
Rattling piping
Foreign object in cutter basket
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The volute has a passage-way to allow trapped air to
escape. This passage-way must be cleaned of
obstruction
The pumping capacity has been exceeded by the rate of
incoming water. Either reduce flow coming into the
macerator or reduce the pumping head.
Clear blockage in piping, or increase pitch of discharge
pipe. Typically ¼" drop per foot is adequate for a gravity
drain.
Clear any buildup in the Macerator holding tank that is
preventing the flappers from opening
Replace impeller
Clean volute's inlet
Confirm the internal hose is functioning properly; if not it
must be replaced.
The volute has a passage way to allow trapped air to
escape, this passage way must be cleaned of
obstruction
The unit is capable of handling up to two shower heads
– multiple (3 and up) shower heads should be avoided.
The discharge flange contains the check valve which
either requires cleaning or replacement
A ball valve should be installed between the tub and
macerator – throttle down or partially close the ball valve
until the macerator can handle the drainage rate from
the tub.
Both the discharge and vent plumbing should be
secured using the appropriate pipe clamp.
The access cover should be removed for manual
cleaning see section 4
17