Black Tank Leak From Over Pressure

datadr wrote:
Well, I wasn't thee, so I'm going by what I was told. Perhaps it was just a valve or fitting, but something broke from the black tank flush and there's a leak underneath. Nothing inside the RV, though.

So, carefully pull the unberbelly cover and start looking?

My point is this. Your neighbor didn't do anything wrong or I should say did not or could not have caused the problem.

The title of your thread is "black tank leak from over pressure." Then you went on to say that your neighbor caused this mess and you wish he would have minded his own business.

If in fact the black tank split (I'm 99% sure this did not happen; but lets say it did) you should be thanking the guy because the failure happened in the campground and not traveling down the road. Tanks are vented and if yours was not venting for some reason your neighbor did not cause the problem.

If in fact the sprayer caused the problem; (fitting blew off or something like that) it was a mechanical failure and your neighbor again had nothing to do with that, or I should say did not do anything which could cause the failure. It would have happen to you the next time you used the sprayer system.

As far as pulling the belly; sure. It's the only way to see what is going on and exactly where and what the point of failure is. This whole deal sounds more like a fresh water piping failure to me. Like was said, maybe a fitting blew off or something like that. If that's the case, it should be an easy(er) fix because working on a fresh water system is a LOT more fun than working on a black water system.

In any event I hope and wish your problem is an easy fix because working on a trailer in a campground is not any fun no matter what the problem is.