With solid cast-iron construction, contractor or commercial-grade performance, and clog-resistant easy-to-service features, they get the job done. If the liquid level reaches the HIGH LEVEL float, the alarm light and buzzer on the control panel will be activated. Sewage is a dirty business - but Little Giant sewage pumps and sewage systems are up to your toughest raw sewage handling demands. The only reason the water level should ever reach the PUMP 2 ON (LAG ON) switch is because PUMP 1 has failed or cannot keep up with the incoming flow. I have added a 3' PVC drain line that also drains into. All of these drained into the pit on one drain line. If you are using a 4 float setup, and the water level reaches the PUMP 2 ON (LAG ON) float switch, then the alternate pump not set to normally come on will be activated. The pit is about 18'X30' deep and was before my starting this project, only used for the floor drain near the furnace, water heater and water softener and the laundry tub. Powered by the LE41A sewage pump, it delivers 4/10 horsepower and has an adjusted maximum flow rate of 7,640 gallons per hour (124 gallons per minute) with a max head of 19 feet. It can also be used in light business settings. At this time the alternating relay will switch to PUMP 2 and it will follow this same cycle and the alternating relay will switch back to PUMP 1 and so on. The Liberty Pumps P382LE41 is a pre-assembled residential sewage ejector package with a shallow system design. Also learn best practices for optimal installation. This means that once the liquid level reachs the PUMP ON float that PUMP 1 will run until the liquid level reachs the PUMP OFF float. Walk through a step-by-step guide on how to install a typical wastewater panel using three floats. ![]() The control panel has an alternating relay that switches between PUMP 1 and PUMP 2 after every cycle during automatic operation. A 4 float setup would have a PUMP OFF, PUMP 1 ON (LEAD ON), PUMP 2 ON (LAG ON), and HIGH LEVEL floats. The standard 3 float setup has PUMP OFF, PUMP ON, and HIGH LEVEL floats. OPERATION OF A DUPLEX CONTROL PANELĪ standard duplex control panel can operate with 3 or 4 float switches. This type of set up ensures that you will always have at least one pump in working order. If one of the pumps fails, the panel will give the high water alarm, and automatically kick on the other pump. ![]() Our Duplex panels will alternate cycles between the two pumps, making sure both are in working order throughout the lives of the pumps. Sewage ejector pumps cost 300 to 800, not including labor or permits. The most common application for a duplex control panel is a system that needs a backup pump in place in case the original pump fails. They will need to be housed inside a tank or pit. Duplex Control Panels are designed to control a pump stations with two submersible sewage or effluent pumps. If there is not enough fall from the house to the septic system or septic line then a sewage ejector pump is needed.
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