[arcticdude]

Loctite makes a “hard to glue” plastics glue. It works quite well on polyethylene. I used it on my previous coach’s fresh tank drain fitting that was originally spun welded.


It’s this one:
https://www.loctiteproducts.com/products...029X6.html

Lowe’s and Home Depot in my area both carry it. It does specifically state polyethylene in it’s list of plastics it glues.


I did remove the tank and completely break the fitting free (very easily done) to reglue it entirely.