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Hi my name is Robert....
Can you expand on this some? Are you saying that you can see a leak from the black water tank? And it only happens when you are using the sinks?
Sounds like you have a line cover on the floor, normally they are screwed to the floor and wall and also could be velcroed in. IF you are getting actual water coming out of the black tank when running the grey water it could be a vaccum breaker issue or a venting issue, go to the roof and make sure all the vent pipes are clear if they were plugged the smell would have no place to go. IF you can actually see water leaking then I would be looking for a faulty vaccum breaker.... Robert
I do not have any prints on this, normally the vacuum breaker will sit above the tanks or in a cabinet in the bathroom near the vent piping. Dump some water down the shower as well as the P-trap needs to hold water to prevent the odors from coming back from the tank.
I am going to opt out of the question, maybe another expert will have some prints on this. I do not know when another expert will respond they come and go daily. My goal is for you to be satisfied.... Robert
The city water flush is only for the black tank. You may have a leak in the gray water plumbing and it is leaking and pooling up on the black tank. This won't have anything I suspect to do with the vent. If these are the usual ABS tanks like most OEMs use now, they are very brittle and subject to breaking...........either at the lid or at the exit of the tank. Good luck getting Forest River to help you.........they have about the worst record of any of the major manufacturers on Customer Service. Lots of complaints here! I think you would be further ahead by checking locally on who is a good qualified and reasonable mobile tech to some and assist you with this. A trained tech can track this down quickly and recommend a fix for you. It may be something as simple as a loose P trap, but some good old fashioned hands on here is the solution. That is my perspective and I have been at this a lot of years and have my own shop and we have to deal with this sort of thing all the time and don't have the luxuary of schematics most of the time. Hope that helps. Feel free to get back to me if you need more and I will offer you a phone chat option as well.
Just checking back in to see if you missed my earlier response to your question? If not, do you need additional input from me here or did you get this resolved?
Keep in mind we can't recall each and every vehicle that people have without seeing them. There are thousands of these! Forest River is about the worst in providing any kind of detailed information and if you can get some from them then I applaud you. We have to track this down in my shop the same way I explained it to you. Takes some time and might be messy, but way quicker than waiting for Forest River to assist. I suspect you just need to call in a good mobile mechanic or take it to the shop. I don't think this is a DIY project.........no offense! And you are welcome. If this was in my shop we would have this resolved in less than 30 minutes. Have a great 4th!
Well, good job, Nicole! Thanks for letting me know...........hope your 4th of July is special!
Not sure, Nicole.........I don't handle any billing. You can request a refund.