Use of insertion (riser) rings to adjust sanitary manhole castings for roadway resurfacing projects
Use of insertion (riser) rings to adjust sanitary manhole castings for roadway resurfacing projects
(OP)
The Maintenance Department at our local wastewater treatment facility does not allow the use of insertion riser rings for minor manhole adjustments on roadway resurfacing projects (throughout their collection system). Their objections are threefold: The rings tend to pop loose when manhole covers are removed, they're not watertight [their sewer system is plagued by I/I issues] and, they can become dislodged by snow plowing, after a number of seasonal freeze/thaw cycles.
I've found plenty of on-line sources advocating the use of these rings as the greatest thing since sliced bread but, does anyone out there share any of the above (or other) concerns?
Thanks!
I've found plenty of on-line sources advocating the use of these rings as the greatest thing since sliced bread but, does anyone out there share any of the above (or other) concerns?
Thanks!
RE: Use of insertion (riser) rings to adjust sanitary manhole castings for roadway resurfacing projects
RE: Use of insertion (riser) rings to adjust sanitary manhole castings for roadway resurfacing projects
RE: Use of insertion (riser) rings to adjust sanitary manhole castings for roadway resurfacing projects
RE: Use of insertion (riser) rings to adjust sanitary manhole castings for roadway resurfacing projects
RE: Use of insertion (riser) rings to adjust sanitary manhole castings for roadway resurfacing projects
One would have to make some calls to other municipalities to determine what other products work well in order to convince the maintenance department to use these products. Then, you will have to make sure the manhole repairs are properly specified, installed, and inspected.
manhole rehab
RE: Use of insertion (riser) rings to adjust sanitary manhole castings for roadway resurfacing projects
There may be a local company in your neck of the woods.