Communities around the world have used E/One Sewer systems — whether they are replacing septic tanks, upgrading existing pressure sewer systems, or as an alternative to gravity sewer systems. E/One's low pressure sewer systems offers a cost-effective alternative to gravity sewer systems because, unlike gravity systems, the low pressure force mains follow the contour of the land.
Low Pressure Sewer Systems vs. Gravity Sewer Systems
Gravity sewer systems are the "original" central sewers, with origins in the Roman aqueducts. They must be accurately bedded along a continuous downward grade and often involve large, costly lift stations. The video at right shows why Clear Creek could not use a gravity system and chose an E/One pressure sewer system instead.
Other benefits include:
- Safe — protects water quality and enhances quality of life
- Reduces cost of housing, both initial and ongoing
- Does not disrupt the beauty of the landscape or damage already-built structures
- No preventive maintenance required of homeowner
- Central sewers increase the value of homes
Beach Drive is an area of Kitsap County, Washington, that sits on Puget Sound. When the health district needed to replace failing septic tanks, gravity sewers, low pressure sewers, and vacuum and STEP systems were evaluated. An E/One low pressure sewer system was chosen because of the dramatically lower installation and operational and maintenance costs. Visit the Case Studies section for more information about Pierce County's experience with E/One Sewer systems, including two articles that document the incredible cost savings over a gravity system.
Upgrade an Existing Pressure Sewer System
If your community already has a pressure sewer system and needs to replace failing centrifugal grinder pumps, E/One has a solution. E/One's Upgrade pump was designed specifically for existing grinder pump sewer systems. The pump is engineered to fit into virtually any other wet well tank, allowing for easy drop-in installation. Visit the Product Catalog for more information.
E/One offers sewer system design assistance and software. Visit our Design Center to learn more.
Frequently Asked Questions
Q: Who owns/maintains the grinder pump stations?
A: The grinder pump is usually owned by the council or water authority, as is the pressure pipe on private property. Regulations or local codes may favor an alternative ownership arrangement. Typically, the municipality maintains the grinder pumps, and E/One's local distributor keeps the municipality up to date on training and product changes.
Q: What about backups? How can we be responsible for a homeowner who may continue to use water when a pump is down, creating a backup?
A: It is in the homeowner's own best interest to alert the authority as soon as possible when the high level alarm is audible. Education of the homeowner is key. In the event of ana alarm condition, the homeowner should minimize use of water within the home until repairs are completed.