I recently installed a sum pit. I has to use a coupling to join the old 3” and the new 4” corrugated pipe (3” is no longer sold here).
I tested the line and the plastic coupling leaks alot. Does anyone have any suggestions how to seal the joint? Will polyurethane sealant work, or perhaps melting it together?
Replies
20 mil pipe wrap tape.
thanks, I keep that in mind.
“[Deleted]”