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Vacuum Sewers - Design and Installation
Guidelines
Rich Naret, P.E.
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.
*Portions of this
course use material excerpted from Alternative Sewer Systems, 2nd ed.; Manual of
Practice No. FD-12.
Reprinted with permission from Alternative Sewer Systems, 2nd ed.;
Manual of Practice No. FD-12. Copyright © 2008 Water Environment Federation:
Alexandria, Virginia.
Specific Knowledge or Skill Attained
This course teaches the following specific knowledge and
skills:
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How a vacuum system
works (theory of operation)
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How to determine average
and peak flows for design purposes
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How to do a system
layout (routing, line sizing, etc.)
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How to determine when
valve pits can be shared & where to locate them
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Where to locate division
valves and cleanouts
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How to size all vacuum
station components
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Which materials should
be used for the major system components
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Items to consider during
installation (line changes, grade control, etc.)
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How to perform daily and
final vacuum testing of the vacuum system
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How to perform system
start-up
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Items to consider during
construction (inspection requirements)
Course
Click on the link below to review the course
prior to taking a quiz for credit.
Vacuum Sewers - Design and Installation Guidelines (568 KB)
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To obtain PDH credits for this course, you will need to take a quiz for
credit. Click on the link below.
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