Sump pump check valves are an important part of any sump pump system. Installed in the discharge pipe leaving your sump pump, the sump check valve prevents your pump from having to re-pump water it has already discharged.
Is a check valve necessary?
Do I need a check valve? A check valve is a valve that is used to prevent backflow in a piping system. ... Even if a pump does have a built-in check valve, we recommend that a check valve be installed in the discharge line within 25 feet of the pump and below the draw down level of the water supply.Jan 16, 2019
Does a submersible pump need a check valve?
Check valves are designed to permit water to flow in one direction and are a requirement on all submersible pump installations. Their job is to prevent water in the column above the pump and in the pressure tank from draining back into the well when the pump shuts off.May 14, 2017
Do I need a backflow preventer on my sump pump?
Traditional water powered backup sump pumps, located down in the sump pit, have discharge pipes filled with dirty sump water. ... To guard against this, plumbing authorities generally require that homes with traditional water powered sump pumps install a Reduced Pressure Zone (RPZ) backflow preventer.
Where do you put a check valve on a submersible pump?
In submersible pump applications, the first check valve should be installed directly on the discharge head of the pump or maximum one pipe length (20 feet) above pump.
Do all submersible pumps have a check valve?
Some submersible pumps have built-in check valves and are suitable for operation without an external check valve, provided the pump setting is not too deep. ... It should be properly sized to the pump's flow and pressure conditions. Prior to installing a check valve, be certain its mechanism is operating properly.May 1, 2001
Do pumps need check valves?
The humble check valve is one of the most important components of any pumping system or fluid moving application. Put simply, the check valve is the first line of defense against backflow which can cause serious problems for your pump and pumping system. ...Aug 2, 2016
Where is the best place to put a check valve on a sump pump?
Sump pump check valves should be installed close to the floor after the pump, as shown by arrow #1. This will reduce the amount of water that drains back to the pump after each cycle.
How do I stop my sump pump from Backflowing?
Waste lines from a sewage ejector or sump pump use a check valve to stop wastewater from flowing back into the basin. When these valves shut, they can make a thud loud enough to be heard throughout the house. To quiet them, replace the old check valve with a “silent” or “soft close” check valve.
Where should a check valve be installed?
Check valve can be installed in horizontal or vertical piping runs, with the flow running upward. Mounting for vertical installations is critical.