I replaced my caps with the following locking caps from Camping World:
http://www.campingworld.com/shopping...mper-plug/6902
They work great.
As for not storing your sewer hose in the bumper because it will cause the bumper to rust - yes that is true, but I think the bumper is going to rust anyway and I doubt it is going to rust thru and become visible during the life of the trailer.
As for causing holes in the sewer hose - I seriously doubt that. Besides,that is what duct tape is for!!
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2011 Keystone Cougar 24RKS
2007 Cadillac Escalade
Prodigy P2 Brake Controller
Past Trailer:
Forest River R-POD RP-175
Past Tow Vehicle:
2008 Toyota Sienna