Seriously? Repair a plastic sewer hose? I don't think so.
I always keep three on hand... one in use, one as an add-on, and one spare. Twice I've assisted nearby campers in difficulty by "lending" them my spare. When return time comes, I always defer (for obvious reasons). If they offer to pay me, ok. If not, ok. IMO, sewer hoses are fragile consumables that are purchased and trashed on a regular basis. There are far more important things to repair.
John & Diane, Fulltimers. RVM103 NHSO
On the road since June '12 with Lincoln, the guard cat.
2002 Dutch Star 40, Freightliner, Cat 3126, 2004 Element