in 2005, the estimated cost or replacing existing sewer lines in disrepair throughout the city was 50 million dollars…….plus be a heck of a mess on our streets, sidewalks, etc. The estimated cost of lining the same sewer lines was 12 million dollars…….no mess at all.
Sometime in the past several years, you may have heard or read that the City of Sanford was reconditioning sections of sewer lines in certain section of our city. East Sanford and the historic areas in particular. Most of these lines are very old and have breaks or cracks that allow ground water to infiltrate the sewer system, or sewer to possibly leak into the ground. The rain or ground water that infiltrates the sewer line is just more liquid the city has to treat at the sewer plant and more cost to sewer customers.
The city has spent millions of dollars in the past several years refurbishing these sewer lines. This is done with a lining process referred to by some as ”cured in place.”
Simply speaking….This process blows a tube, (like a long tube sock) into a section on pipe that requires lining. Hot liquid is then pumped through the liner causing the material, a form of epoxy, to expand. With the liquid removed, the material hardens. Next a robot is maneuvered through the new pipe cutting a tap out at each residence allowing the flow from each household to resume.
I’m sure I have left out a few steps in this procedure. Hopefully, you get the basic idea of how this pipe lining is preformed.
This process can be preformed on almost any sized water or sewer line and is much more cost effective. The life expectancy of this material is 30 to 50 years….depending on who you speak to about the product. In either case, this is a great alternative to digging and replacing lines and cost a fraction of the price.
If you have any questions regarding this issue please call City Manager Hal Hegwerat 919-775-8201.