On our garden irrigation system we had to sand down an old PVC pipe, which had swollen from age, to accept a new union, but we now have a leak at that new union. We used the purple solvent and PVC glue recommended and all other joints are fine. There's not enough pipe left to cut it out and replace it with a new union, so we have to find a way to fix that leak. Any ideas? It's in the pipe coming out of the pump, so there's up to 60 pounds of pressure on it. The union is where I tried to cement the threaded male end of a 1 1/2" solvent weld union to an existing pipe. Most of that union is OK, but water spews out of about a 1/2" section, so I don't think it possible to separate the items so I can try again with another type of cement that would fill any gaps. Thanks for your help.