E/One Webinar: Pressure Sewer Design Using E/One Design Assistant

Introduction

The recent webinar led by Rachel Seiler, Marketing Communications Manager for E/One, focused on the design of pressure sewer systems using the E/One Design Assistant software. The host, along with Derek Latchett, the Director of Engineering for E/One, provided valuable insights into the functionality of the software and the principles of pressure sewer design.

Housekeeping Notes

Before diving into the main content, a few housekeeping notes were shared:

All attendee lines were muted to minimize background noise.
The session was recorded, with an archived version set to be available on E/One's website and YouTube channel.
Post-webinar, attendees will receive a PDF of the presentation, a link to download the software, and a certificate of attendance.
A Q&A session would be held towards the end of the webinar.

Introduction to E/One

Derek introduced E/One, a company with over 50 years of experience in pressure sewers. Based in Niskayuna, New York, E/One has been a leader in the global market for pressure sewer systems, with more than 700,000 units installed worldwide, serving approximately 2.5 million people.

Importance of Design Assistance

Derek emphasized the significance of early stakeholder engagement and budgetary considerations in the design process. The software serves as a vital tool for performing preliminary designs, providing accurate outputs that rely heavily on the quality of input data.

Key Steps in the Design Process

Data Gathering: Collect relevant project information such as site layout, sewage flow estimates, piping types, topographical information, and discharge locations.
Zone Division: Projects are segmented into smaller zones for more accurate analysis.
Total Dynamic Head Calculation: Determines the operational capacity of the grinder pumps.
Pipe Sizing: The software aids in selecting appropriate pipe sizes based on flow rates and velocity constraints.

Using the Design Assistant

Derek demonstrated how to use the Design Assistant software effectively. The software streamlines calculations and provides recommendations for pipe sizes, friction losses, and total dynamic head analyses. Key features of the software include:

Automatic calculations based on input data.
Iterative calculations to optimize designs.
Ability to generate a bill of materials.

Maintenance Considerations

The discussion addressed maintenance for pressure sewer systems, emphasizing the need for periodic flushing and cleanouts, especially in long runs without branch connections.

Conclusion

In wrapping up the session, Derek reiterated the value of the E/One Design Assistant in simplifying the pressure sewer design process while ensuring robust and sustainable outputs. Attendees were encouraged to follow up with any additional questions or further assistance.

Q&A Session

Towards the end of the webinar, various questions were answered, covering topics such as H2S considerations, the impact of seasonal occupancy on systems, design considerations, and maintenance best practices.

Keywords

E/One
Pressure sewer systems
Design Assistant software
Total dynamic head
Pipe sizing
Maintenance
Q&A session

FAQ

Q: What is the role of the Design Assistant software in pressure sewer design?
A: The Design Assistant software simplifies calculations, provides pipe size recommendations, and supports total dynamic head analyses during the design process.

Q: How often does maintenance need to be performed on pressure sewer systems?
A: Maintenance frequency varies, but periodic flushing may be necessary, particularly in long runs without branch connections.

Q: What factors need to be considered when calculating static head in a pressure sewer system?
A: Static head is calculated using the maximum and minimum elevations within the project area, typically relying on surface elevations rather than precise depth measures.

Q: What is the expected lifespan of an E/One grinder pump?
A: E/One grinder pumps are expected to last over 25 years, with service intervals typically every 8 to 10 years based on performance data.

Q: Are air relief valves necessary in pressure sewer systems?
A: Yes, air relief valves should be placed every 2000 to 2500 feet along a run without defined high points or at significant changes in grade.