Restraining a connection between AC and PVC
Restraining a connection between AC and PVC
(OP)
There is a sewer line being run through our system that directly conflicts with an existing 8" AC line. The solution was to keep the sewer line on it's current course and move the water line up and over where the sewer is going to go, leaving a separation of 0.5 meters. I started to type out an explanation but thought I'd just make a rudimentary sketch on Paint instead (attached).
Question is, how would you suggest we restrain the connections? The engineer decided on pouring a cubic meter of concrete on top of the transition couplings and tying back the elbows to restraint clamps (about 4" away). After seeing a bunch of fractures in AC pipe, I'm concerned that the additional weight of the concrete on the pipe will just break it sooner rather than later.
Any opinions?
Question is, how would you suggest we restrain the connections? The engineer decided on pouring a cubic meter of concrete on top of the transition couplings and tying back the elbows to restraint clamps (about 4" away). After seeing a bunch of fractures in AC pipe, I'm concerned that the additional weight of the concrete on the pipe will just break it sooner rather than later.
Any opinions?





RE: Restraining a connection between AC and PVC
RE: Restraining a connection between AC and PVC
We had initially suggested that as well (if they went back far enough (6-8m), they might even have gotten away without any bends), but they decided on this route instead (2m out from bend to transition coupling).
I'm just trying to get a good idea of what to do to fix it properly when it breaks in the middle of the night a couple years down the road.
RE: Restraining a connection between AC and PVC
Have done this numerous times with no problems.
RE: Restraining a connection between AC and PVC
Richard A. Cornelius, P.E.
WWW.amlinereast.com