Most of the time it is 4 inch.
its not easy but if you can locate your main drain pipe and its below your basement floor then saw cut up the floor and attach the floor drain to the trap and then tie on to the main line using the same pipe or adapters. If you have no main drain under your basement floor then you will need to saw cut a hole for a sump pump pit or basin and install the sump pump to your main drain line which has to be installed so your sump pump line runs higher then your main line before wyeing to the main line. then cut up the floor to where u want your floor drain and run the drain to your sump pump basin . Some states want a vent on your floor drain and on your sump basin so I would check what your local codes are.
a home typically has a 4" main drain and that is enough. if it is not 4" you should get a plumbing code and do the math. Can you add a second 3-inch wasteline to an existing 3-inch main house wasteline in order to add the 3rd bath and toilet (this is obviously a 1950's house)?
If you have a floor drain, there is a trap on the bottom of that. The main line shouldn't have a trap in it. There does not need to be one on the main because each fixture should have one and that's just another place for a clog to form.
The drain pipe has a blockage somewhere downstream from where the toilets are connected to the main sewer line from the house. All the drains in a house normally connect to one main line that either goes to the city sewer system or your septic tank. If you know where the sewer line exits the house, you could check there to see if the blockage is in the yard. Most sewer blockages are caused by tree roots, broken fittings, or crushed pipes. Good Luck
The drain from the toilet to the main drain is plugged and the branch to the shower is not. If the main floor toilet flushes, it is between the two toilets and not between the house and the sewer.
3" house (building) drain allowable. 4" building sewer line needed for house from sewer main.
Usually, but not always, where it leaves the basement it should be at that level straight to the street or alley depending on which way it goes. If you don't have a basement, from the toilet or where the vent goes through the roof straight to the street or alley. If you are on a septic, it may be a straight shot or come out and 90 degree to the tank, depending on where the tank is in relation to the house. It is usually the shortest route between the main stack which is the toilet and the main sewer line or septic. It will be at the depth of the drain when it leaves the house. If you have a floor drain, that means it's 6 to 8 feet down.
From what I was told by a licensed plumber it is on the "street side" of the fresh air inlet into the main line.
Main line stoppage is a clogged drain line.
Anytime I have plummbed a house, I always start on the far end of the drain system and slowly drop the grade as I work my way to the main drain. Just always remember sh!t rolls downhill. goodluck
Your kitchen sink drain and your shower drain are connected to a common drain line. There is some sort of blockage in the drain line past the point where the shower drain ties in. You need to call a plumber to run a snake through the drain line from the kitchen to where it ties in to the main drain of your house.
Let's say that you have houses 1, 2, and 3, we also have Main Street, and 1st street. House 1 and 2 both lie on Main Street, but house 3 does not. House 2 and 3 both lie on 1st street, but house 1 does not. This is an example of non-collinear points because house 1, and 2 can be on the same street, House 2 and 3 can be on the same street, but not all three houses, or points, can be on the same street, or line.
Could be caused by a couple of things. If you have an onsite septic system (tank and drain field) the tank may be full, and the rainwater is causing it's contents to backup the main drain back in to the house. A vent pipe could be plugged, which causes the sewer gas to back up. If you are hooked to a public sewer, there may be a blockage in the main drain out to the line in the street. Have a plumbing contractor check it out. It can be very dangerous.
D.C street
1/4" per foot
A water or sewer main is as it sounds ,It is the main feed line that runs underground usually along side a street or easement from your house or place of business to connect you to these utilities.
its not easy but if you can locate your main drain pipe and its below your basement floor then saw cut up the floor and attach the floor drain to the trap and then tie on to the main line using the same pipe or adapters. If you have no main drain under your basement floor then you will need to saw cut a hole for a sump pump pit or basin and install the sump pump to your main drain line which has to be installed so your sump pump line runs higher then your main line before wyeing to the main line. then cut up the floor to where u want your floor drain and run the drain to your sump pump basin . Some states want a vent on your floor drain and on your sump basin so I would check what your local codes are.