QA

Quick Answer: How To Install A Toilet Drain Pipe

How do you support a toilet drain pipe?

What size pipe do you use for a toilet drain?

The standard size of a toilet drain pipe is 3 inches in diameter, but the drain can be up to 4 inches in diameter. The drain pipe is usually connected to a 3-inch schedule 40 toilet drain pipe.

Does toilet flange go inside or outside pipe?

Install a toilet flange on the outside. This can be done with a hammer and chisel. If the flange is cast iron with a rubber gasket, you should be able to remove the cast iron with a hammer and chisel, remove the rubber gasket with a sharp knife, then replace the gasket and the flange.

Should there be standing water in toilet drain pipe?

If you see any sewage or water around the outside of that cap, you definitely have a blocked sewage drain. If you pull off the cap and see standing water inside the sewer cleanout, that’s also indicative of a blocked sewer drain.

What is the pipe under the toilet called?

A toilet flange (also called a closet flange) is a pipe fitting that secures a toilet unit to the drain pipe in the bathroom floor. A rubber gasket and wax ring tightly seal the flange to the bottom of the toilet.

Should toilet drain be 3 or 4 inch?

Waste drain pipes for toilets in modern plumbing systems are either 3 inches or 4 inches in diameter. The wider the pipe, the more waste it can move and the less likely it will be to clog. A 4-inch pipe can carry about twice the waste of a 3-inch pipe.

Can toilet waste pipe run under floor?

With the location of the soil-pipe that manages toilet waste at the other end of the house, the answer is definitely no, this is definitely not a cost-effective option. They can be mounted on the floor, but usually pipes run below the floor in-between the floor joists.

Do toilets need to be vented?

“Does a toilet need a vent?” And the answer is yes, your toilet has to have a vent. For more information on the great importance of plumbing vents, read our plumbing vent article here. And the size of this vent pipe depends on your local plumbing code.

How do I know what size toilet flange I need?

The most common and readily available toilet flange is the 4 x 3-inch size. This pipe is 4 inches wide at the top but only 3 inches wide at the bottom. The 3-inch bottom is the correct size for fitting the schedule 40 pipe most frequently used in home drains.

Can you put a new toilet flange over an old one?

Either slide the new closet flange bolts into the old flange before adding the extender or add them after you adhere the extender to the old flange. Consequently, we chose to add one of the bolts to the old flange first since it was a tight fit. Add metal washers and nuts to the closet flange bolts.

Why is toilet paper coming out of outside drain?

Overflowing toilet paper is the most common sign of a blocked sewer pipe. If you are connected to a septic tank, and you have a blockage in the drain between the house and your septic tank, your toilet paper will overflow through one of your external gully traps.

How do you get the toilet water to go down?

Plunge out the Water After shutting off the water supply valve, place the flange of a toilet plunger (also called a closet plunger) firmly into the drain hole in the bottom of the toilet bowl. Plunge with an up-and-down motion to get most of the water out of the bowl. This should force out any clog into the drain.

Why does shower gurgle when I flush toilet?

Here’s the longer answer: Your shower and toilet most likely share a drain line and a vent stack (this setup is called wet venting, more on that later). If either the line or the stack has a clog or blockage, air is forced either up or down your toilet, making the gurgling noise you’re hearing.

Should a toilet flange be level with the floor?

When you install your toilet flange, it should be installed on top of the finished floor, and it should also be installed perfectly level. If your flange sits uneven or below the floor, then it’s wrong. It has to sit evenly on top of the finished floor. As a result, the toilet may wobble or leak at the base.

What does the knob behind the toilet do?

How to turn off water to toilet: Locate the valve (looks like a hose) attached to the base of the toilet and the adjacent wall. Turn the knob under the valve clockwise to turn off the water supply. It’s important to note that older toilets don’t have valves.

What is a toilet ring?

The wax ring is exactly what it sounds like: a ring made of sticky wax that helps form a watertight seal between the bottom of the toilet and the sewer pipe. It requires no maintenance and can last 30 or more years, often as long as the toilet itself.

How many toilets can you put on a 3 inch drain line?

There is one answer. The International Plumbing Code requires 5 Drainage Fixture Units in a bathroom group. It’s good for 20 DFU’s or 4 bathroom groups.

Can you use 2 inch pipe for a toilet?

Unless two toilets are on the same drain and then it must be a 4-inch plumbing waste pipe, the toilet requires a drain pipe of 3 inches in diameter. Unless there is a toilet discharging into the piping, systems with less than nine units can use a 2-inch pipe.

How many toilets can you have on a 3 inch line?

As a horizontal branch 3″ is good for 20 DFU’s or 4 bathroom groups.