I don't think that sewer hose will work on an ACE 30.2. It looks like the piece that hooks to your RV is a few inches long before it can bend. I'd recommend any hose you get try connecting it to your rv before your going to need to dump it and make sure the place you bought it from will let you return it if not.
Thor may have cut the access hole under the drain in a better spot on yours than mine. Hopefully they did.
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