6 | EN
Copyright © Liberty Pumps, Inc. 2020 All rights reserved.
7386000M
Figure 1. Basin Installation Reference
Installation
All installation and maintenance of pumps, controls,
protection devices, and general wiring shall be done by
qualified personnel.
All electrical and safety practices shall be in accordance with
the National Electrical Code
®
, the Occupational Safety and
Health Administration, or applicable local codes and
ordinances.
Electrical Connections
With main power disconnected, complete pump and plugger box
connections per plugger box wiring diagrams. Verify connections.
When complete, check all wires for unintentional ground.
Discharge Line
Connect schedule 80 PVC pipe to pump discharge. Do not
increase discharge piping to larger than 2”. Do not reduce
discharge to below the pump outlet size. The remainder of the
discharge line should be as short as possible with a minimum
number of turns to minimize friction head loss.
Alarm and Plugger Box
Connect the alarm panel and plugger box per their own
Installation manuals.
Connect pump and float switch leads to the plugger box in
accordance with the instructions included with the unit.
Inlet Line
Connect the inlet line to the inlet hub per engineer’s specifications.
1”
3/4”
1/2”
1/4”
30º maximum
Lifting cable or chain
Spreader bar
FINISH GRADE
Optional lifting lugs
Slope and size of excavation as per
OSHA and engineer’s specification.
In the absence of these,
consider condition of soil, depth of
excavation, and safety considerations
Basin anti-flotation flange
Compacted sub-base and/or concrete
slab as per engineer’s specification
FINISH GRADE
12” minimum backfill compacted to a minimum
soil modulus of 700 lbs per sq ft
Fiberglass basin as required
per engineer’s specification
Backfill material
Concrete grout as required
per engineer’s specification
CAUTION:
HANDLE WITH CARE
Do NOT drop
Do NOT impact
Do NOT roll
Do NOT wrap cable or
chain around basin
Compacted sub-base minimum 12” or 6”
when used with concrete hold-down pad
Adjacent structure, foundation,
footing, or property line
In the absence of building codes or
regulations, maintain a minimum distance
of 5 feet plus a slope of 45° from the
bottom of the compacted sub-base to the
bottom of the adjacent structure’s
foundation, footing, or property line.
NOTE:
The intent of these installation instructions and illustration is to ensure that damage or
premature failure to the basin does not occur. These installation instructions and illustration are
not
intended to preclude normal safety procedures that should be followed to prevent injury to personnel.
SAFE INSTALLATION PROCEDURES ARE ENTIRELY THE RESPONSIBILITY OF THE INSTALLER
Pea Gravel
Crushed Rock
BACKFILL MATERIAL REQUIREMENTS
5’-0”
minimum
45°
minimum
RISK OF ELECTRIC SHOCK
