Need help with running drain pipes underneath mobile home please

10 years ago

last modified: 10 years ago

I will be replacing the drainage lines under a mobile home and need help with how exactly to connect them. There is a main sewage drain under the trailer and it looks like they just took a huge white pvc drain pipe and connected it to something in the bathroom, all of the other drain lines are disconnected and laying there. As far as I can see the plumbing is all intact in the trailer it is just unhooked underneath. There is a black drain pipe that comes up in the kitchen that is capped not sure if thats a vent or what. There is nothing on the main sewage drain just a sewage line to connect to so am guessing I'll half to make a trap there as well? I've included a pic with the layout, the tub drains to the right. Thank you very much for any help we are in a bad situation and this was pretty much our only option so I'm willing to put the work in just unsure how to line everything up. I'm in Michigan so I'm not sure if there should be any traps underneath either because of freezing.

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Comments (2)

Debbie B.
10 years ago
Hi Nicholas,

I think you could get better help over on the plumbing forum. But make sure it's from someone who understands that plumbing is different in a manufactured home (the preferred term to "trailer") than in a site built home.

Another helpful resource might be mcgarryandmadsen.com. They are home inspectors and have a blog, including numerous entries about manufactured homes (MH), in which they are experts.

I'm guessing you are coming to this site because you can't afford a plumber, or because you are an experienced DIY-er. I understand about not having money--believe me!!--I do. And I understand about doing as much DIY as possible. But I highly recommend, if at all possible, to at least have a qualified, licensed plumber who is knowledgeable about MH plumbing, inspect the plumbing under the house and tell you what exactly is wrong. I have a lot of DIY knowledge (but can't do a lot of it anymore due to my disability), but the two things I will never touch are electricity and plumbing. You really need professionals for these.

Even if you DIY, you will still need a permit and have the work inspected. If you don't get the work permitted and you ever sell the MH and the home inspector finds unpermitted work (and a good inspector will), you will not be able to sell the home until you get a permit and have the work done right and pass inspection. If they miss it, and you sell the house, if something ever goes wrong and the house floods or something, the new owners can force you to pay for all the damage.

I hope this is helpful information. Whatever your situation, I wish you good luck and all the best! If you ever have anymore questions about MHs, please don't hesitate to ask. :-)

Sincerely,

Debbie
Debbie B.
10 years ago
On the other hand, if you bought this MH and the plumbing problems are due to unpermitted work, you can go back to the sellers for relief.
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