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datadr's avatar
datadr
Explorer
Jun 10, 2018

Black Tank Leak From Over Pressure

Hello all,

Today at our seasonal site, my wife arrived several hours before me and turned things on as we usually do. When we leave for the weekend, we turn the water off and release the pressure in the lines, etc.

So today she arrives, turns on the water, hot water heater, etc. She isn't getting water, so she goes outside and is checking things. Our neighbor, trying to be helpful, comes over and finds a valve junction I put on for various water lines (fresh water, black tank flush, hose, etc.). He turns on the black tank flush and tells her he found the issue and try it. She goes in, water works (because she just had to wait a moment for the fresh water pressure to build).

About 45 mins later, she hears a loud bang, and water is coming out underneath. She calls me and describes what happened. After asking a few questions, I realize the black tank flush built up pressure, ruptured something and is spilling out.

She dumped the black tank, turned off the black tank flush and had someone at the campground confirm things... That's what happened.

So, we need some repairs I'm sure. I plan to have a professional deal with this. I don't know if the tank ruptured or just blew a fitting, but while I'm handy, I want this done right.

My question is this... It's probably going to be a few days before we get someone out to look at it and fix it. I know there's black water in the area between the floor and the underbelly plastic seal. Should I wait for a pro, or do I need to get this open and drained asap? I don't want mold or worse, but I don't want to damage anything salvageable (like the plastic underbelly cover) if the pro would handle this differently.

Thoughts? Stupid error. Neighbors are nice enough, but I wish they minded their own business. Looking for advice

Thanks,

- Mike
  • Maybe it just blew the hose off of the fitting where it connects to the flush valve at the tank. I had that happen before.
  • I don't see how any of this could happen?

    The tank is a vented system. No pressure to build up.

    The lines are all pressure rated and can all dead head with no problems.

    You can have water pour out of the vent on the roof when the sprayer is left on but that didn't happen.

    Something is not right here?
  • Not good...who needs this kind of grief...
    But, I know how I am. I would probably start (carefully) getting into it. Get it opened up, cleaned out, starting on drying and poking into what needs to be fixed....This will save you money and more grief.

    As far as your statement, "Neighbors are nice enough, but I wish they minded their own business.".....I'll just say hold my tongue and say nothing...

    Good luck with it...this kind of thing happens. It's all part of the adventure.