I have seen them at the supply house counter with scraps of pipe for demonstration but haven’t personally tried one. Most of the bends customers had done looked to have a very short radius. I’m not sure that you could easily make an accurate bend such as an offset since you are required to over bend the pipe to make up for substantial spring back. I also don’t like the look of the bends but I guess looks don’t matter if the pipe is being used underground.
I use a hot box for most small PVC bending. Last year I purchased one of the Hot Bend torches for a job that required many customer bends in 3” pipe and would have say that it was a very good purchase.
Bob, I think the idea behind theses springs is not to use any heat. I’m not use that they would be any better than using a standard pipe bender.
Curt
