Here's an easy way that doesn't risk damaging anything. Wanted to try it before I posted. The ID of a 1.5" PVC pipe is 1.6" and the OD of a 1.25" pipe is 1.67". Almost able to fit one pipe inside the other. You need to shave about .035" off the OD of the 1.25 pipe and it will slip into the 1.5". I did this with a drum sander chucked in a drill press. Took about 5 minutes. Since the junction is under water you don't have to be totally airtight. Once you're adapted to 1.25" pipe you can go to whatever the cleaner needs. Don't know if the smaller diameter and slightly added restriction will affect operation or not but it's worth a try. Cheap too. You can almost thread a 1.25" NPT male into the 1.5" pipe but I wouldn't try cutting threads as the pipe may fracture. PVC is pretty brittle. If you have a lathe the job gets easier yet.
Hope this helps.
Al
Attachment 660
Attachment 661
Bookmarks