Under The Sink Drain Pumps

UnderThe Sink

Under the sink drain pump are used to pump the drain water for laundry tray sinks, bar sinks, multi-compartment sinks, utility sinks, dishwasher, washing machines and other basement remodeling projects. Under the sink drain pumps allows the freedom to install fixtures where gravity drain lines are not available. These units are designed to for gray wastewater applications. They are not designed for use in septic tanks or underground vaults to handle raw sewage or effluents. Never use these units in hazardous or explosive locations nor for pumping chemicals. The systems arrive fully assembled and are designed to be installed above ground. These economical water removal systems are great for basements or areas where the main drain is higher. Systems are UL listed, CSA approved, and the basins are IAPMO approved. They allow the freedom to install fixtures where gravity drain lines are not available. The units are designed to fit under most sinks, so in many cases it is not necessary to recess the unit into the floor. Tanks and pumps are shipped in separate cartons to protect during shipment. Assembly is required. An open vent must be used. A Studor vent or equal device cannot be used.



Capacity Table In Gallons Per Minute
Brand Model HP Basin
(Gal)
Head In Feet Shut-off
5’ 10’ 15’ 20’ 25’ 30’
Gallons Per Minute (GPM)
Liberty 404 1/3 4.3 35 28 16 - - - 20 '
Little Giant WRS-6 (506055) 3/10 5.5 44 28 10 - - - 17'
Little Giant WRSC-6 (506065) 3/10 3.5 44 28 10 - - - 17'
Goulds SDS1 4/10 10.0 53 46 35 21 - - 24’
Liberty 405 1/2 5.5 50 45 37 30 22 10 34’
Liberty SPAC-457 1/2 - 48 45 38 33 23 12 34’

Liberty Sink Drain System 35 GPM 1/3 HP 4.3 Gal.  115 V # 404 (C)

Liberty Sink Drain System 35 GPM 1/3 HP 4.3 Gal. 115 V # 404, Liberty Pump fully automatic submersible sump pump with a 5 Gallon basin. The short profile is specially designed for compact areas. Removes water from laundry trays, mop sinks, water softeners, dehumidifiers or wherever gray wastewater drainage is below gravity lines.

List: $326.56
Value Priced $238.06
Availability: ships the next business day
LIB-PMP-404
Liberty Sink Drain System 50 GPM 1/2 HP (5.5 gal) 115V #  405 (C)

Liberty automatic submersible sump pump with a 5.5 Gallon basin. Designed for commercial drain pump built to perform in high-head, high temperature situations. Removes water from laundry trays, mop sinks, bar sinks, dishwashers, water softeners, dehumidifiers or wherever wastewater drainage is below gravity lines.

List: $471.12
Value Priced $343.45
Availability: ships the next business day
LIB-PMP-405
Little Giant Sink Drain System 44 GPM 3/10 HP 5.5 Gal, WRS-6 (506055) (D) <br>

Little Giant Drainosaur Water Removal System includes 5-gallon polypropylene tank. Tank lid has 1 1/2" FNPT side intake port, 1 1/2" FNPT top discharge port, and 2" FNPT top vent port. Easy-to-remove filter trap. Also includes 3/10 HP automatic submersible sump pump with 8' cord and 3-prong plug; and 1 1/2" diameter pipe from pump to lid.

List: $367.15
Value Priced $240.89
Availability: ships the next business day
LGI-PMP-WRS-6 (506055)
Little Giant Sink Drain System 44 GPM 3/10 HP, 3.5 Gal, WRSC-6 (506065) (D)<br>

Little Giant sink drain system 44 GPM 3/10 HP, 3.5 Gal, WRSC-6 (506065). Tank lid has 1 1/2" FNPT side intake, 1 1/2" FNPT top discharge, and 2" FNPT top vent. Easy-to-remove filter trap. Includes 3/10 HP automatic sump pump with 8' cord and 3-prong plug; and 1 1/2" diameter pipe from pump to lid.

List: $367.15
Value Priced $240.89
Availability: ships the next business day
LGI-PMP-WRSC-6 (506065)
Goulds Water Technology Pumps Sink Drain System SDS1 (C)

Goulds Water Technology Pump fully automatic submersible sump pump with a 10 Gallon basin. Removes water from laundry trays, wet bar sinks,air conditioning condensate or dehumidifier water, residential dishwashers, mop sinks, water softeners, beautician sinks or wherever gray wastewater drainage is below gravity lines. An open vent must be used. A Studor vent or equal device cannot be used

List: $517.09
Value Priced $376.96
Availability: ships the next business day
GOU-PMP-SDS1

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