How Far Can You Move A Toilet From The Stack?

How Far Can You Move A Toilet From The Stack?

We’re an affiliate
We hope you love the products featured in our articles. Just so you know, we may collect a share of sales or other compensation from the links on this page. Thank you if you use our links, we really appreciate it!

Are you planning a bathroom renovation and are not sure how far your toilet can be moved from the stack? You’re in luck! In this article, we will outline the maximum distance your toilet can be moved from the stack and provide some tips on how to make the move.

The ideal distance between your toilet and stack depends on the size of both, but it’s important not to exceed 6 feet when dealing with a 3 inch diameter waste line. If you’re using 4 inch waste lines, the toilet must not be greater than 10 feet away from the stack.

It may seem like an overwhelming task at first, deciding what type/size plumbing fixture will work best for our home however once we know exactly where each piece goes its much easier to put the bathroom together.

Distances Between The Toilet And Stack

The main concern when deciding to move a toilet is the waste or sewer line. Most houses have a 3 inch waste line, which means the maximum distance the toilet can be moved is 6 feet from the stack.

If you’re using 4 inch waste lines, then the maximum distance the toilet can be moved is 10 feet from the stack.

Larger diameter waste lines can be placed further away from their corresponding stacks without creating an uneven slope which will lead to clogs more easily than smaller ones would.

Distance between the toilet and stack is important because it affects how fast water flows. To keep things running smoothly, you want ¼-inch per horizontal foot pipes (that’s about as wide or thicker than your finger).

Considerations Before Moving Your Toilet

Now that we know how far we can move our toilet from the stack, there are a few other things to consider before making the move.

When it comes to moving a toilet, it’s important to know the the size of your bathroom and the type of flooring you have. You may also need to make some adjustments to accommodate the new position of the toilet.

Shop now and get big savings on American Standard Toilets

Size Of Your Bathroom

If you have a small bathroom, you may not have as much wiggle room to move the toilet as you would in a larger bathroom.

Keep this in mind when deciding how far to move the toilet from the stack.

Type Of Bathroom Flooring

If you have tile or laminate flooring, you’ll need to factor in the thickness of the flooring when determining how much space you have to work with. Removing or replacing flooring can be a time-consuming and costly process, so it’s best to avoid this if possible.

Toilet Bowl Configuration

If you have a standard toilet, you’ll need to make sure there is enough space in front of and behind the bowl for the flushing mechanism to work properly.

If you’re moving the toilet closer to the stack, you may need to get a smaller toilet or one with a different bowl configuration to make it fit.

Work With A Professional

If you’re not sure how to properly move your toilet or don’t feel comfortable doing it yourself, it’s best to hire a professional.

They will be able to assess your bathroom and advise you on the best way to move the toilet without damaging the bathroom or creating any plumbing issues.

How to Move A Toilet

Once you’ve considered all of the above factors, you’re ready to move your toilet.

Remove The Toilet

To remove the toilet, first be gentle with its fixture to prevent any damage. If you do not plan on reusing your toilet dispose of it responsibly.

Start by shutting off the water supply to the toilet. Then, flush the toilet to empty the tank. Carefully disconnect the water supply line from the back of the toilet. You may need a wrench to loosen the connection.

Now it’s time to remove the bolts that secure the toilet to the floor. Use a screwdriver or drill to remove the bolts. Some toilets have plastic bolts that can be removed by hand.

Once the bolts are removed, you should be able to lift the toilet off the floor. If the toilet is glued to the floor, you may need to use a putty knife to pry it loose.

Locate The Toilet Drainage Lines

Toilet drainage lines can be found running through the flooring system of your bathroom. They’re easy to access if you know how.

To access from above, use a saw blade and cut about 1/8 inch into the subfloor. For below, ground level demolition is needed first-to break out any drywall ceilings located on top.

Cut the Toilet Bend

If you have a reciprocating saw, use it to cut away the old toilet bend. Make sure that your cuts are as close to the waste vent stack as possible.

Position New Drain Location

Now it’s time to position the new drain location. The new drain should be located close to the stack and at the same level as the old one.

The minimum required distance from the center of your drains to any sidewalls, including shower or bath tub is 15 inches.

Run New Drain

You will need to run a new drain from the new toilet location to the waste vent stack. Make sure that the toilet is in the correct position with respect to the stack.

If the pipe diameter is 3 inches, then the toilet should be no more than 6-feet away from the stack. If the waste line diameter is 4 inches, then the toilet should be no more than 10-feet away from the stack.

At the stack, install a new wye fitting where you severed the old drain. Use a 90-degree bend to direct the pipe to the toilet. Fit all of these pieces together with glue. As you glue them, make sure that they slope at ¼-inch per horizontal foot towards the stack.

Install The Drain Stub-Out

The drain stub-out is a vertical pipe that connects the new drain to the stack. It should be installed at the same level as the old one.

Use a hacksaw to cut the pipe to the correct length. Then, glue to a 90-degree toilet bend at the end of the new drain. Also, attach a 6 inch pipe so it goes up through the floor.

Run The Water Supply Lines

You can use a PEX pipe to continue the water supply. You will need to research which method of connecting the tubing to the existing copper pipes is best for you.

Then, you will need to put a copper stub-out elbow with a flange and stud nails where the pipe comes out of the wall.

Install The Toilet Flange

The toilet flange is a fitting that is used to connect the toilet to the drain pipe. It is usually made of PVC or ABS plastic.

To install the flange, first attach it to the top of the drain pipe. Make sure that it is level and flush with the floor.

Then, use screws to secure it to the floor. You may need to use a drill to make pilot holes for the screws.

Install The Toilet In The New Location

Now it’s time to install the toilet in its new location. Start by attaching the bolts to the floor. Then, attach the water supply line to the back of the toilet. Tighten all of the connections with a wrench.

Shop now and get big savings on Kohler Toilets

Test For Leaks

Once you have installed the toilet, it’s time to test for leaks. To do this, turn on the water supply and flush the toilet.

If there are no leaks, then you’re done. You’ve successfully moved your toilet without damaging the stack.

Final Thoughts

Have you ever moved a toilet? It’s not as easy as it sounds. In fact, unless you have the right tools and know what you’re doing, moving a toilet can be downright difficult.

But, with a little bit of know-how, you can move a toilet without damaging the stack. Just follow the steps outlined in this article and you’ll be good to go.

Leave a Comment

Your email address will not be published. Required fields are marked *