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This article gives inspection and maintenance advice for Sump Pumps, Sewage Ejector Pumps, Septic Grinder Pumps, Sewage Pumping Stations, & Septic Pump Alarms. Citation of this article by reference to this website and brief quotation for the sole purpose of review are permitted. Use of this information at other websites, in books or pamphlets for sale is reserved to the author. Technical review by industry experts has been performed and is ongoing - reviewers welcomed and are listed at "References." This document is a chapter of Inspecting, Testing, & Maintaining Residential Septic Systems an online book on septic systems. Sketches are from the Environment One Low Pressure Sewer Systems Grinder Pump catalog. © Copyright 2008 Daniel Friedman, All Rights Reserved. Information Accuracy & Bias Pledge is at below-left. Use the links at page left to navigate this document or to go to Other Website Topics. Green links at left show where you are in our document & website. Guide to Sewage Ejector Pump InspectionThe general name for these pumps is sewage grinder pumps if they are intended to grind and move black water or sewage, or sewage effluent pumps if the pump is intended only to move clarified effluent, say from a septic tank to a drain field. Some of the common pump brands include ABS pumps, Crane (centrifugal grinders) pumps, Environment One or E/One sewage pumps, Goulds pumps, Hydromatic pumps, Liberty sewage pumps, Little Giant pumps, Myers pumps, Tsurumi pumps, Webtrol sewage pumps, and Zoeller sewage grinder pumps. Several sewage pump manufacturers produce a separate line of commercial or municipal sewage grinder pumps from those used in residential application. What you see at a building site may indicate a history of problems: The pumps at page top may have been a misapplication for this municipal lift station ,which may explain why we found these discarded units on the site. Septic pump systems vary by these parameters: Is the proper pump installed? Septic pump manufacturers provide a pump selection and sizing table that is used to guide the installer in selecting the proper pump. We've seen sewage handling systems where the wrong type or wrong capacity of pump was installed, sometimes as an attempt to "save money." Are modifications to the septic pump system visible ? What do they mean?
The septic grinder pump at left has had a hole cut at floor level to permit other basement leakage to enter the pumping chamber to be pumped away. Of course any sewage backup will flow back out of this hole into the room, and might prevent the pump alarm from functioning - but then is there a pump alarm installed? From the number of wires entering the tank, probably not. Also we see no check valve (see photo at right, brass valve on the left hand vertical outlet pipe). Also the wiring connections entering the tank are held in place with gray-painted-over masking tape - not particularly reliable. Guide to Sewage Ejector Pump MaintenanceInspect the sewage grinder tank for the following:
Use links just below or at the left of each page to navigate this document or to view other topics at this website. Green links show where you are in our document or website. SEPTIC PUMPS |
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05/02/2008 - 10/30/2006 www.inspect-ny.com/septic/Septic_Pump_Inspection.htm © Copyright 2008 Daniel Friedman - all rights reserved
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