There are two principal advantages of a two-pump septic system: Wile single grinder pump systems are often installed to support an extra basement bathroom, where a sewage pump is handling an entire home or larger facility, duplex septic pumping systems (shown in the photo at the top of this page) are preferable for their greater reliability. Reliability requirements define when a duplex sewage grinder pump or septic pump system is appropriate Including Anchor Scientific, Aquawarx (control panels), B/W Controls, Orenco, Rhombus, SJ Electro, and CSI. Septic Pump controls for two-pump duplexed septic systems are produced by several manufacturers I don't like this setup as much as we're never testing pump #2 until the very day it's absolutely needed. Handling surge loads on the septic system: A duplex septic pump system in which the second pump can come on as effluent level rises in the pumping chamber handles either unusual flows into the system (uncommon) or the case where the 1st pump is broken. This approach provides both pump backup and the ability to handle surges in sewage loads on the system. Reserve septic backup design: the backup septic pump never runs unless the primary septic pump has failed or is overloaded.Ī simple installation provides a pump control float switch that turns on the backup pump only when effluent or sewage in the pumping chamber reaches a level above that normally handled by the primary septic pump. However this system lacks the ability to handle surges in wastewater load unless additional controls and wiring are installed to make the pump also come on in response to high waste levels such as in the reserve septic backup design discussed next.Ģ. The two sewage grinder pumps are installed at the same location but are wired so that the pumps take turns, first one, and next cycle the other pump is turned on by the float switch. ![]() Alternating septic pumps: two septic pumps alternate, taking turns running - I prefer this method as you are spreading the wear over two pumps and you'll know when one fails and have a chance to repair it. Either of these is found at municipal lift stations and similar installations and also in buildings where a backup or extra capacity is needed for water removal.ġ. There are two common pump-pair or duplex sump or septic grinder pump system setups. ![]() Under the appropriate septic system type which are outlined Septic pumps used for pumping air in aeration systems and septic pumps used to move effluent in a drip dispersion system are discussed Shown here, our illustration, adapted from Glentronics sump pump instructions cited below, describes details of a typical battery-backup dual-sump pump installation. We include effluent pumps used in septic mounds and raised-bed septics in this second wastewater-handling group bu tnote that effluent pumps are not intended to pump solids. ![]() Septic & sewage pumps - for pumping sewage or wastewater, including solids, out to a sewer main or to a septic tank located at a higher elevation. ![]() Sump pump installations - for water removal or prevent water entry - details are.To avoid confusion note that duplex and backup pump systems may be used for either We also provide an ARTICLE INDEX for this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need. This article describes the reasons & methods for installing duplex versions of septic pumps, septic sump pumps, sewage ejector Pumps, septic grinder pumps, & pumps in sewage pumping stations.Īdvice is given for septic tank effluent or sewage pump selection and use. We have no relationship with advertisers, products, or services discussed at this website.įor critical systems such as a sewage system that depends on pumps for operation or a building that depends on sump pumps to keep water out of a low area, duplexing the pumps along with appropriate controls and periodic testing is an important step. InspectAPedia tolerates no conflicts of interest.
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