How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manufactured and modular homes
What is the average life expectancy of a sewage grinder pump?
Wednesday, June 3, 2020
How long does a sewage grinder pump last?
You can expect a sewage grinder pump to last 6 to 16 years, with an average of 9 years. A grinder pump is installed along the drain line to a municipal sewer system or private septic tank when the pipe slope is not enough to flow by gravity. See our blog post What is a grinder pump? to learn more. Like any appliance, heavy usage—and specifically lots of on/off cycles of the pump motor—will shorten life expectancy.
Here’s a bar graph that compares the life expectancy of a grinder pump to other well and septic components.
Go to our blog post What is the average lifespan of the parts of a house? for rating of other house components. To understand the basis, potential use, and limitations of lifespan ratings, see How accurate are the average life expectancy ratings of home components? Are they actually useful?
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Field Guide for Home Inspectors, a quick reference for finding the age of 154 brands of HVAC systems, water heaters, and electrical panels, plus 210 code standards for site-built and manufactured homes, and the life expectancy rating of 195 home components. Available at amazon.com for $19.95.
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To learn more about SEPTIC TANK SYSTEMS, see these other blog posts:
NOTE: These life expectancies are based on data provided by InterNACHI, NAHB, FannieMae, and our own professional experience. Because of the numerous variables that can affect a lifespan, they should be used as rough guidelines only, and not relied upon as a warranty or guarantee of future performance.
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