6 | EN
Copyright © Liberty Pumps, Inc. 2021 All rights reserved.
7353000J
Figure 1. Basin Installation Reference
Insta lla tion
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.
For pressure sewer applications
, verify a Redundant Check
Valve Assembly (curb stop and check valve) is installed
between the pump discharge and the street main, as close to
the public right-of-way as possible, on all installations to
protect from system pressures.
Electrical Connections
With mains power disconnected, complete pump, control panel,
and alarm connections per included wiring diagrams. Verify
connections. When complete, check all wires for unintentional
ground.
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