User Manual

3
TankMaster™ 4 Pump Controller
Automatic Mode: Automatically empties
holding tank at mid-level, which is adjustable
at time of installation. Full-level float will turn
on pump if mid-level float fails.
Manual Mode: Holding tank discharge
pump runs only when keyed switch is held in
“manual” position.
• Empty tank.
• Tank contents between
empty and mid-level
probe.
• Tank contents reach
mid-level probe.
Holding tank discharge
pump starts
automatically.
• Discharge pump light on.
• Discharge pump shuts
off automatically when
tank level drops below
empty probe.
• Discharge pump light
off.
• Empty tank.
• Tank contents at
mid-level.
• Holding tank discharge
pump started by
holding switch in the
manual position.
• Discharge pump light on.
• Discharge pump shuts
off when key switch is
released from the
manual position.
• Discharge pump light
off.
SYSTEM OPERATION DIAGRAM