Sump Pump Float Switch Diaphragm Review by Comparison

For Submersibles at Pumps Selection


Review by Comparison

Float Switch for Submersible Sump Pump is important because

  • This is the mechanism that triggers the operation of the pump.
  • Without some kind of trigger the pump will not operate.
  • A diaphragm relies on water pressure to trigger the operation of the pump.
  • A diaphragm switch has no floatand thus is more reliable than the tether or vertical float. It relies upon the pressure of the water to trigger the operation of the switch
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Diaphragm Switch  - Submersible Sump Pumps




Little Giant Series 8-CIA 508157 4/10 HP Cast Iron Submersible Sump Pump

Cast Iron Diaphragm Switch 2520 GPH @ 10 ft. 2 yr. Warranty 1 1/2in Discharge


Little Giant Submersible Pump - 3240 GPH, 4/10 HP, 1 1/2in., Model# 508157

Little Giant Model 8-CIA 508158 Diaphragm Submersible Sump Pump

4/10 HP Cast Iron Diaphragm Switch 2520 GPH @ 10 ft. 2 yr. Warranty 1 1/2 in. Discharge



Little Giant 8-CIA Automatic Submersible Sump Pump, 115V, 4/10HP, 25' cord
Little Giant 8-CIA 508059 VDS Submersible Sump Pump

4/10 HP Cast Iron Vertical Diaphragm Switch 2520 GPH @ 10 ft. 2 yr. Warranty 1 1/2 in. Discharge

Little Giant 8-CIA-VDS, 4/10 HP, 45 GPM - Automatic Submersible Sump Pump w/ vertical diaphram switc

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Little Giant  Series 6-CIA 506174 1/3 HP Submersible Sump Pump

Cast Iron Diaphragm switch 1750 GPH @10 ft. 2 yr Warranty 1 1/2 in or 1 1/4 in Discharge


Little Giant Series 6-CIA 506174 Submersible Sump Pump 1/3 HP

Little Giant Model 10-CIA 510155 Submersible Sump Pump

1/2 HP Cast Iron Diaphragm Switch 3780 GPH @ 10 ft. 2 yr. Warranty 1 1/2 in. Discharge 10 ft. Power Cord



510155 Little Giant #10-CIA Big John Sump Pump
Little Giant Model 10-CIA 510156 Submersible Sump Pump

1/2 HP Cast Iron Diaphragm Switch 3780 GPH  @ 10 ft. 2 yr. Warranty 1 1/2 in. Discharge


Little Giant 10-CIA Automatic Submersible Sump Pump, 115V, 1/2HP, 25' cord
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Little Giant Series 6-CIA 506158 Submersible 1/4 HP Cast Iron Sump Pump

Diaphragm Float 1740 GPH @ 10 ft. 3 yr. Warranty 1 1/2 in. Discharge


Little Giant Submersible Sump Pump - 2760 GPH, 3/10 HP, 1 1/2in., Model# 506158

Little Giant 12-CBA 512125 Submersible Sump Pump

1/2 HP Cast Bronze Diaphragm Float 3870 GPH @ 10 ft 2 yr Warranty 1 1/2 in. Discharge


Little Giant 12-CBA 1/2 HP, 83 GPM - Bronze Automatic Submersible Sump Pump, 25' power cord (512125)

Little Giant ES33D1-10 506420 Sump Pump

1/3 HP Cast Iron Diaphragm 2400 GPH @ 10 ft 1 yr. Warranty 1 1/2 in. Discharge

LITTLE GIANT PUMP 506420 ENERGY SAVING 1/3 HP SUMP PUMP

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Ridgid SP-330D Submersible Sump Pump

1/3 HP Stainless Steel Diaphragm 2700 GPH @ 10 ft. Lifetime Warranty 1 1/2 in Discharge


Ridgid SP-330D Black 1/3 Horsepower Submersible Sump Pump

Little Giant Model 6-CIA 506166 1/3 HP Submersible Sump Pump

Cast Iron Diaphragm Switch 1740 GPH @ 10 ft. 2 yr. Warranty 1 1/2 in. Discharge 230V


Little Giant 6-CIA, 1/3 HP, 45 GPM, 230V - Automatic Submersible Sump Pump, 8' (3.6m) power cord (50

Little Giant Series 6 CIA 506171 Sump Pump

Cast Iron Vertical Diaphragm 1750 GPH @ 10 ft. 2 yr. Warranty 1 1/2 Discharge

Little Giant 6-CIA-RFS Automatic Submersible Sump Pump w/ Remote Float Switch, 1/3HP, 10' cord

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Little Giant 6E-CIA VDS 506712 Sump Pump

1/3 HP Cast Iron Vertical Diaphragm Switch 2520 GPH @ 10 ft. 2 yr. Warranty 1 1/2 in. Discharge


< Little Giant Model 6E-CIA VDS 506712 Submersible Sump Pump

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