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You should call them if you have a serious issue or can’t find a leak (water is one of a mobile home’s biggest enemies). They have ways of testing a system and narrowing down a problem in minutes. If your washer drain line is only an inch and a half pipe you may want to consider re-piping it with a two-inch pipe. While doing that, tie it in under the house directly to the main drain/trunk line itself, separate from the kitchen drain. Those 1.5″ pipes just aren’t meant to handle a lot of water, especially high-pressure water being released from a newer washer.
All year we hear gurgling from the toilet if we drain the tub and gurglingvin the kitchen sink when we use our dishwasher. But when the temperatures start to get cold there is an awful odor that arrises when we use our hot water for the most part but also cold sometimes too. A house needs at least one vent through the roof and then all the other fixtures can be auto vents though most inspectors want vent stacks whenever possible.
The 3 Parts of a Mobile Home Plumbing System
Assuming there is no leaks under the home, I’d suggest changing out your aerator . When you moved the lines around You probably loosened up some gunk and it’s closed off your faucet. Just unscrew it from the faucet and see if you have water. You can buy a new one for a couple of dollars or just clean the old one.
Mobile homes are notorious for only having 1.5” drain lines from washing machines to trunk. New machines are powerful and higher-efficiency and needs at least 2” drain lines. I have had 3 plumbers out for a slow drain in our guest bathroom.
Water Supply
Even a slow leak can cause the problems you’ve stated. For the toilet, you can get a dye for the water that can help you locate a leak. For the drains and supply lines, you can have a pressure test done to find any leaks. It’s sometimes pretty hard to find leaks, they aren’t always obvious. Bypassing old plumbing supply lines is a very common thing in mobile homes that have been re-piped.

Work carefully around the edge of the roof to avoid injury or injury. You should wear safety glasses while working, as a lot of loose material will fly off toward you. The material should be thrown in a garbage can below you as you work. Thank you for the links and I’m going to open up the panel with all the tub valves in it this weekend. I try to publish 2 articles per week but sometimes life gets in the way.
Problem 5: Missing Water in your Toilet
Supply lines carry water into and throughout your home. The supply lines, or water lines, need healthy pipes with tight connections that must handle high-pressure water. You turn the handle on a sink and the pressure forces the water out.

If you want to do a much more precise job you can use a small crowbar instead of a shovel, a cutter and also the always useful hammer to remove the nails. Use expanding foam to attach and seal the vent and other roof elements to complete this project. The shingles should have a flange or attachment that you can use to nail them to a nail strip that you installed over the tar paper. Work carefully to secure the entire row before moving on to the next row. To remove the shingles you can use either a shovel or a pickaxe.
Renewing the indoor air inside the mobile home through ceiling fans also helps to reduce the rate of other potential indoor pollutants such as VOCs, CO2, and formaldehyde. I’m sorry you and the master plumber are no longer together. I still love the homes and the people in them, though! My 1978 single wide completely changed my life for the better and I’ll forever be thankful. Would improper installation cause a 3″ sewer pipe underneath my home to disconnect at a seam? I have been without commodes for almost a week, due to the warranty company denying the claim.
Clog is probably further down the main line from where the tub and vent tie in so you snake and drain king needs to go farther down the pipe. I have also opened up some of the underpinning panels (which are tin and don’t breathe enough I don’t think) which also helped. Firstly, thank you so very much for all this info!
However, it’s things like this that ultimately cause an issue and make master plumbers across the nation not want to work on our homes. There’s no easy fix to this once the walls are installed. A lot of plumbers will use auto vents instead of running a wet vent or a direct vent in new home construction and remodels.

We tried to determine the exact odor, sewage, sulfur, rotten eggs, what is it, etc……….We augured the main line from cabin to tank. We put a vent coming out of the cabin in and up and outside of the cabin. This park model is not vented through the roof. The drain probably dropped when you unhooked it for the sink which caused it to hold water underneath and cut the vent off to the toilet.
Instead of having to remove all the old supply lines you just cap the old off and run new because it saves on labor and time. Try installing an auto vent under your kitchen sink and maybe add one under bath lav. It wouldn’t hurt to have a plumber check the vent off the drain system.

So, if I had to guess I would say you have a sag in the drain system and it’s holding water and freezing, which clogs the whole system. A simple strap will probably fix you right up. Your skirting or underpinning absolutely needs vents, and this may be your biggest issue if you don’t have any vents. There is a ratio used for skirting vents and I think it’s 1 square foot of vent for every 150 square feet of area.
Call you water company and a plumber immediately. You have to stop the water from soaking into your wood. You’ll def need a new toilet ring on that one toilet. In the photo below, you are looking at the backside of the utility room where the washer will go in the manufactured home.

You may just need to add an auto vent to that ‘branch’ (laundry/kitchen/bath) so that there’s adequate venting. You may also want to change the location that your laundry room drain enters into the main drain trunk (further ‘down’ from the kitchen drain perhaps). It really sounds like your problem is in the ground or the area between the ground and the home. Most manufactured home builders will only cover the pipes from the home’s connection point so I’m impressed with them moving the line from the beam as it’s outside the home. You will need to make sure your water supply line or trunk is below the frost line from the meter to the home and then the vertical line entering the home is very well insulated. Using heat tape in that area is common in your state, too.
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