How Stuff Works: Sewer and Septic Systems
Each time you flush the toilet or wash something down the sink's drain, you create sewage (also known in polite society as wastewater). Find out where it goes and how it's treated before it flows into a river near you!
http://www.howstuffworks.com/sewer.htm

Sewer Service Meters
City Meter, Inc. manufactures an innovative flow meter capable of measuring dirty and clean water flows. The flow meter requires no external power source and is extremely accurate in low flow partial pipe measurement conditions. The meter is designed for use in municipal, commercial and industrial wastewater flow measurement and is particularly useful in metered sewer billing and infiltration inflow (I/I) programs.
http://www.city-meter.com

Perma-Liner Industries, Inc.
The Leader in Trenchless Technology, providing plumbers and contractors Cured In Place Pipe (CIPP) systems for municipal, residential and commercial laterals
http://www.perma-liner.com/

Cloverleaf Tool Company
Cloverleaf Tool Co. - Manufacture and distributor of sewer and pipeline cleaning equipment, including nozzles, swivel joints, root cutter saw blades and assemblies, power clamps, suction hose and more.
http://www.cloverleaftool.com/

Earnhart Hill Regional Water & Sewer District
Provides water and sewer service to rural areas of Pickaway and Fairfield Counties in Ohio USA.
http://www.ehrwsd.org

O'Brien Manufacturing
We manufacture Sewer Cleaning Equipment. Sewer Jetters used for cleaning sizes from small grease lines to large culverts. O’Brien Manufacturing has the tools for contractors and GSA affiliated agencies.
http://www.obrienmfg.com/

Clean River Works, Portland's Combined Sewer Overflow Program
City of Portland, Oregon CSO / Big Pipe Project
http://www.portlandonline.com/cso/

ABC Pipe Cleaning Services Ltd.
Your source for sewer parts, accessories, equipment, and video inspection equipment. We also provide video inspection, flushing, point repairs, grouting, smoke testing, and more.
http://www.abcpipecleaning.com/

Paul P. Pruss and Son
Services include Pressure Testing and Tank Cleaning, Pipeline Cleaning, Sewer Cleaning, Vessel Cleaning and Heat Exchanger Cleaning, Vacuum Truck Fleet, 24 Hour Emergency Response
http://www.prussandson.com/

NsertAseal Corporation
POTENTIAL CONTROL STRATEGIES TO REDUCE EMISSIONS FROM REFINERY WASTEWATER COLLECTION AND TREATMENT SYSTEMS
http://www.nsertaseal.com/