I know loc-tite makes some neat pipe repair products. I used to work for an
Industrial supply company and sold some to our local hospital. The guy came back a couple days later and ordered a couple cases. Apparently they had a sudden pipe leak that, in the past, would have shut down a wing until they could replace the pipe or fittings (steel or copper). With the epoxy, they did a quick patch, which water was leaking, and it held fine even under pressure. I'm sure there is something that would work, considering there is no pressure.
Another thought, a Fernco coupler. Its a rubber boot, that would go over both fittings and is locked in place with hose clamps.
Joel and Teresa
2016 Sabre 34TBOK
2006 GMC 3500 CC LB DRW 4X4