Looking at an '08 Coachmen 2310QB and I see that the black tank valve and discharge outlet is hanging underneath the coach rather than inside a compartment like others I've seen. My concern is how vulnerable it looks to being busted by something. Like backing into a parking space and hitting it on the curb or driving over a big rock while boondocking, etc.Am I being concerned needlessly? Thanks.

Every trailer we've had has that dump valve arrangement. Yes, in theory you could bump it into something and cause a problem, but I've never had a problem. If you're reasonably careful you'll be fine.

My 47 year old rig is like that and I've never had a problem and both were original to the rig when I bought it. In most cases, it is far enough forward from the back bumper that it won't be hit easily, and they are at the same or slightly higher point as the bottom of the tank so if you hit them, you've hit your black tank too.

Probably all toy haulers and bumper pull and 5th wheel trailers have this arrangement. I would also bet that 70 - 80 percent of class C's also have this arrangement.

Your axles are lower than those valves.

Never known anybody to have issues with clearance due to this arrangement, that rig you are interested in is 15 years old and black tank outlet it is still intact. With that age of motorized RV there are more critical areas to be concerned about, with 100s of thousands of RVs with that arrangement for dumping it is really a non issue for the vast majority.

Black Tank Valve/Discharge Under Coach Rather Than In A Bay?

bukhrn
Explorer III
Feb 01, 2022
Every Class C I've seen (including mine) have this arrangement, the only RV's I've seen with the dump in a Bay, are Class A's, I suppose there may be others.
As far as boondocking, this is the very reason I don't do it, fear of ripping something off, dump valve, main exhaust tail pipe, Generator exhaust pipe, at 9 1/2 inches of ground clearance, and a few other low hanging items.
Sandia_Man
Explorer II
Feb 01, 2022
Never known anybody to have issues with clearance due to this arrangement, that rig you are interested in is 15 years old and black tank outlet it is still intact. With that age of motorized RV there are more critical areas to be concerned about, with 100s of thousands of RVs with that arrangement for dumping it is really a non issue for the vast majority.
jdc1
Explorer II
Feb 01, 2022
Your axles are lower than those valves.
opnspaces
Navigator II
Feb 01, 2022
Probably all toy haulers and bumper pull and 5th wheel trailers have this arrangement. I would also bet that 70 - 80 percent of class C's also have this arrangement.
toedtoes
Explorer III
Feb 01, 2022
My 47 year old rig is like that and I've never had a problem and both were original to the rig when I bought it. In most cases, it is far enough forward from the back bumper that it won't be hit easily, and they are at the same or slightly higher point as the bottom of the tank so if you hit them, you've hit your black tank too.
BurbMan
Explorer II
Feb 01, 2022
Every trailer we've had has that dump valve arrangement. Yes, in theory you could bump it into something and cause a problem, but I've never had a problem. If you're reasonably careful you'll be fine.

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Black Tank Valve/Discharge Under Coach Rather Than In A Bay?

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