Overview
From the time the very first public sewer system was constructed until the 1960’s, a conventional gravity system was the only choice US engineers had when considering a public sewer collection system. This changed about 40 years ago when the USEPA challenged the industry to develop alternative collection by providing special funding for such endeavors. One of the alternative collection systems is vacuum sewers.
This 8 PDH course is Part II of a three-part series. This course will focus on detailed design and installation guidelines for vacuum sewer systems. Part I discusses the basics of vacuum sewer technology by providing a broad overview of the technology while Part III focuses on the Operation & Maintenance and System Management aspects related to vacuum sewers.
This course will provide information that will guide the engineer in the design and construction phases of vacuum sewer technology. The course materials are based on the materials presented in the vacuum chapter of the “Water Environment Federation (2007) Alternative Sewer Systems, 2nd ed.; Manual of Practice No. FD-12” as published by the Water Environment Federation. The student will learn how to design each major component of the vacuum system (mains, valve pits and vacuum station) including the proper materials/equipment to be used for each component. The student will also learn the key issues to consider during the installation phase, including inspection duties, vacuum testing and system start-up procedures.
The student must take a multiple-choice quiz consisting of forty (40) questions at the end of this course to earn PDH credits.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- How a vacuum system works (theory of operation)
- How to determine average and peak flows for design purposes
- How to do a system layout (routing, line sizing, etc.)
- How to determine when valve pits can be shared & where to locate them
- Where to locate division valves and cleanouts
- How to size all vacuum station components
- Which materials should be used for the major system components
- Items to consider during installation (line changes, grade control, etc.)
- How to perform daily and final vacuum testing of the vacuum system
- How to perform system start-up
Course
Click on the following link to the PDF document to review the course material before taking the quiz for credit.
Vacuum Sewers - Design and Installation Guidelines
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