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how to repair sewer pipe under slab

by Dr. Matt Gleichner DDS Published 2 years ago Updated 2 years ago
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How to Fix a Broken Sewer Pipe in a Slab Foundation

  • Locating the Break. A cement slab is porous. Water leaking from a pipe break beneath it will wick upward through the...
  • Making a Spot Repair. Once the pipe break has been located, a small area of concrete slab directly over the broken pipe...
  • Replacing Pipe Sections. In older homes, sewer pipe can degenerate and rust...

Part of a video titled How to Repair a Sewer Pipe Under a Concrete Slab - YouTube
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Down the cut ahead at the end of the drain snake will scrape the inside of the pipe. And remove theMoreDown the cut ahead at the end of the drain snake will scrape the inside of the pipe. And remove the last of those tree roots to leave a nice clean pipe.

Full Answer

How to replace sewer line under concrete slab without digging?

Some of the potential OSHA requirements for permit-required confined spaces include:

  • An employer must develop and implement an extensive written program for space
  • Testing, monitoring, ventilating, communications, and lighting equipment
  • Barriers and shields
  • Retrieval devices
  • Proper worker training
  • Provide an entry supervisor
  • An employer must provide and train rescue service personnel
  • Entrants must wear harnesses with retrieval lines

How to fix a broken sewer line under your house?

The Ways to Prevent a Broken Sewer Line

  • Evaluate the Trees and Plants Growing near Your Home’s Sewer Line. We’ve already discussed how tree roots could wind up damaging the sewer line under your yard. ...
  • Exercise More Caution When Using Drains inside Your Home. Being more careful can do wonders for your sewer line. ...
  • Perform Routine Maintenance. ...

What are the signs of a broken sewer pipe?

What Are the Signs of a Broken Sewer Pipe?

  1. Strong sewer odor: This is the first sign that something might be wrong. ...
  2. Toilet that gurgles: This one is a little trickier to spot. ...
  3. Drains that take a long time to clear: Sewage seeping into your plumbing can cause debris to enter and clog up the drains. ...

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How to fix a broken pipe under the House?

  • The sound of running water when taps are not being used
  • Warm spots on the floor
  • Patches of wet grass around exterior walls
  • Wet or damp carpet
  • Low water pressure
  • Moisture on internal flooring
  • Mildew or mould under carpets, rugs or at the base of drapes
  • A musty odour
  • Unexplained increases in your water bill
  • Rising damp

More items...

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How do you fix a broken pipe in a slab?

2:545:32How to Repair pipe in concrete slab - fixing broken, repairing ... - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo actually this is more like a shovel chisel the type thing and you got this little small chisel.MoreSo actually this is more like a shovel chisel the type thing and you got this little small chisel. And then the pointy guy which is pretty much all of what I used to break through this concrete.

How do you replace a cast iron sewer line under a slab?

1:153:10Cast Iron Plumbing Replacement Under A Slab Fouundation - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe old cast-iron pipe was breaking down and then take you on down you can follow the cast-iron.MoreThe old cast-iron pipe was breaking down and then take you on down you can follow the cast-iron. Piping. Along the wall and then you can follow the PVC.

How do you replace a sewer line under a basement floor?

0:1216:17sewer line under concrete slab repair - YouTubeYouTubeStart of suggested clipEnd of suggested clipOkay here's the project of the day. I have this existing slab underneath this slab i have a sewerMoreOkay here's the project of the day. I have this existing slab underneath this slab i have a sewer drain pipe coming from my toilet. Going out to the street.

How do you install a sewer line under a concrete slab?

1:051:58How to Install Plumbing in a Slab - YouTubeYouTubeStart of suggested clipEnd of suggested clipAgain you can see we've got the insulation on the water lines as it passes through the concrete. AndMoreAgain you can see we've got the insulation on the water lines as it passes through the concrete. And the right of the frame here and then the sewage lines are wrapped in a felt and taped.

What is the life expectancy of cast iron sewer pipe?

between 80-100 yearsCast Iron: Cast iron pipes last between 80-100 years, and are built to withstand a high amount of water pressure. However, like galvanized steel, cast iron piping has been found to be susceptible to rust over time.

Should I replace cast iron sewer pipe with PVC?

Durable – Polyvinyl Chloride can last up to 70 years or more. Replacing cast iron pipe is expensive as they deteriorate from oxidization. Cleaner – Because PVC doesn't corrode or rust, you won't get any metal in your sewage or drinking pipes. It's a non-toxic material, safe to use for all kinds of plumbing purposes.

How do you seal a sewer line in a basement floor?

If you wish to seal a floor drain using cement, it's best to use hydraulic cement, which is used to stop leaks in concrete and masonry. This will ensure the seal holds up to any backflow pressure from the water being push back against it. Begin by removing the drain's grate and clean away any debris from the opening.

How do you find a sewer pipe under concrete?

1:028:09SIMPLE WAY TO FIND A SEWER LINE UNDER CONCRETE SLABYouTubeStart of suggested clipEnd of suggested clipSo what it is is it puts a signal into the line or conduit you're trying to locate and then withMoreSo what it is is it puts a signal into the line or conduit you're trying to locate and then with this wand you're able to go along and detect it under the slab or underground.

How do you fix PVC pipe in concrete?

0:121:33EASILY Repair Broken PVC Irrigation Pipes (UNDER CONCRETE)YouTubeStart of suggested clipEnd of suggested clipSo it was really impossible to get to and i didn't want to cut up the concrete. So in terms of theMoreSo it was really impossible to get to and i didn't want to cut up the concrete. So in terms of the pipe i'm dealing with schedule 40 three quarter inch. And what i did was i got a piece of blue. Pex.

Can you pour concrete over drain pipe?

Pouring concrete around PVC pipes can be useful in a variety of household and industrial applications, such as building garden ponds or installing outdoor plumbing. The job can be simple and cost-effective when the correct preparations and techniques are applied.

How do you fix a crack in a sewer line?

0:221:35How to Repair Cracked Drain Pipe [EASY] - YouTubeYouTubeStart of suggested clipEnd of suggested clipLet's go ahead and apply this we get the release liner get an edge started. This release linerMoreLet's go ahead and apply this we get the release liner get an edge started. This release liner started. We're gonna put it right over the hole. And then I'll finish pulling the release liner. Down.

How do I fix a leaky sewer line?

0:142:56sewer pipe leak ,steps to take to fix ? - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd look what we discover folks a cracked galvanized sewer pipe this was in the wall seeping sewageMoreAnd look what we discover folks a cracked galvanized sewer pipe this was in the wall seeping sewage so the first step we take is we went ahead sock cut the stucco removed the stucco.

How do you replace plumbing under a concrete slab?

1:225:12How to Repair a Sewer Pipe Under a Concrete Slab | This Old HouseYouTubeStart of suggested clipEnd of suggested clipDown the cut ahead at the end of the drain snake will scrape the inside of the pipe. And remove theMoreDown the cut ahead at the end of the drain snake will scrape the inside of the pipe. And remove the last of those tree roots to leave a nice clean pipe.

How do you replace a cast iron floor drain?

0:135:44Replacing a Basement Floor Drain and Trap - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo you always want to make sure your traps holding water this is an old cast-iron trap.MoreSo you always want to make sure your traps holding water this is an old cast-iron trap.

How do I find cast iron pipe under concrete?

1:028:09SIMPLE WAY TO FIND A SEWER LINE UNDER CONCRETE SLABYouTubeStart of suggested clipEnd of suggested clipSo what it is is it puts a signal into the line or conduit you're trying to locate and then withMoreSo what it is is it puts a signal into the line or conduit you're trying to locate and then with this wand you're able to go along and detect it under the slab or underground.

How do you remove old cast iron pipes?

0:002:20How To Remove Cast Iron Pipe From Your House - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo we're able to break the hub of pipe it was a hammer and I'll kind of show you how it comes up iMoreSo we're able to break the hub of pipe it was a hammer and I'll kind of show you how it comes up i real quick. Alright we already started to smash off the belt here so we can get this cast out.

How much does this trenchless drain repair under slab cost?

Trenchless drain repair under your slab costs about a $150 per linear foot and takes about two days to do, as opposed to two weeks for excavation for drain repair under the slab.

How to remove rust from cast iron pipe?

From outside of your property where the pipe cleanout access point is located, the pipe rust and scale is removed using a hydro jetter and a drain snake. Next we use a pipe video inspection camera to determine how long the break or crack in your cast iron pipe is.

How long does it take for a polyester sock to be inflated?

Polyester sock contains a temporary balloon that is inflated once it is pulled into the pipe period. After about 4 hours the new polyester sock is completely hard and the temporary balloon is removed and a new video inspection is done to determine correct installation.

What is the final new inner pipe?

The final new inner pipe is designed for load-bearing pipes that are located under roads, railways and building footers. If, for example, a section of clay or cast iron sewer pipe is missing, the new inner lining is designed to be a stand-alone pipe.

Is pipe lining faster than repiping?

Let’s not forget, since pipe lining requires no excavation, it is clean er, less invasive and much faster than repiping the old-f

Can you repair cast iron pipes under a slab?

The good news for you is that there are modern alternatives to repairing the cast iron drain pipes under your slab without having to excavate through the floor or digging from outside of your property. It’s also much less money to do the trenchless pipe repairs than by digging for pipe replacement.

How does trenchless pipe relining work?

This technology has been around for about 15 years for residential small diameter pipes. For larger pipes under roads and highways the technology has been around for about 30 years. It first came from Japan and Europe where they wanted to save structures that were thousands of years old. Learn more about pipe lining installation here.

How long does it take to reline a cast iron drain?

Residential trenchless pipe relining of your cast iron or clay drains only takes a few hours and usually comes with a 50 year warranty. All the work is done from outside of the house and no digging has to occur.

How much does it cost to dig up a 3 bedroom house?

The reason is simple. The plumbers get to keep the all the money. Digging up a 3 bedroom 2 bathroom house typically costs $25,000, whereas pipe relining will cost about half that much. plumbers do not want to give up the $25,000 in revenues.

What are the disadvantages of digging under a building?

Another disadvantage of digging under a building is that a collapse could occur and people could die on your property. That has legal liability issues, apart from moral issues of having someone buried underneath your home.

Have you been told that your house has to be excavated to replace your old pipes?

Before & After Trenchless Cured In Place Pipe Lining (Internal diameter only reduced by 6%!)

How do Plumbers Locate Pipe Breaks Beneath a Slab?

The best way to determine exactly where and what the problems are is through a video pipe inspection.

What is a Slab Leak?

When there is a break in a pipe that runs under the concrete foundation of your home, a slab leak is in full effect.

What happens if you have a broken drain pipe under your house?

If you suspect you have a broken drain pipe under your basement, garage or other slab flooring, it’s crucial to contact a licensed team of plumbers who are experienced in slab leaks.

What causes a slab leak?

When there is a break in a pipe that runs under the concrete foundation of your home, a slab leak is in full effect. From the break or crack in the water or sewer pipe line, water or waste seeps into the ground and your foundation. Because of the extensive damage broken drain pipes under basement, garage and other slab floors can cause, ...

How to avoid a trench in the middle of a house?

In order to avoid creating a large cavernous trench in the middle of your home, you might consider sewer pipe relining, or trenchless sewer repair. Instead of breaking up large amounts of concrete slab, only one access hole will need to be dug.

How to tell if a concrete slab is leaking?

Warm or wet spots on the concrete floor: Because slabs are porous, you may be able to tell there’s a sewer line break just by looking at the floor. If there is a large water or damp spot, it’s more than likely a slab leak. Additionally, if warm water is leaking from a pipe under your slab, it can create hot spots or small pools ...

Why is it important to detect a leak in a basement?

Because of the extensive damage broken drain pipes under basement, garage and other slab floors can cause, it’s vital to detect and quickly act on these types of leaks.

How to repair a copper pipe?

Should you decide to repair the copper pipe, rather than replace, it’s a fairly easy procedure. A hacksaw or tubing cutter can be used to cut out the damaged portion. The next step is to simply replace it with new tubing and copper couplings before soldering it into place to repair the flow.

How to find a leak in a pipe?

Some leaks are difficult to find and require the use of specialized listening devices (sonar), infrared cameras, or helium detection equipment. After turning off the water completely, air is pumped into the lines. This forces out any remaining water, so the plumber can listen for air escaping from the damaged pipe.

What to do when a leak is identified?

Once the leak is identified, a plumber can evaluate the situation and the location of the leak. At this point, a plan is configured and put into place. In some cases, it’s better to re-plumb the affected section, while other times new new piping throughout the the entire house will be necessary.

What are the signs of a sewer line leak?

They are more difficult to detect and often go unnoticed until there are visible signs which include damage to your foundation or domed (raised) sections of flooring.

Why does my water bill increase?

Finally, a significant increase in your water bill could be a sign of a leaking pipe. Since a broken line runs continuously, your water bill will rise. If you notice an increase that you can’t explain, either your water company is taking advantage of you, or you have a leak!

How to tell if hot water lines are leaking?

The first indicator is the presence of water or damp spots on your floor. Leaking hot-water lines can also create warm spots on your floor. Walking around with bare feet inside your home can help you identify the location of any lines that are leaking because you’ll feel the heat through the floor.

Can copper pipes be replaced?

Before beginning the repairs on a section of pipe beneath a concrete slab, consideration should be given to re-piping, rather than using a temporary fix. Should you decide to repair the copper pipe, rather than replace, it’s a fairly easy procedure.

How to repair a leak in a pipe?

In some cases, smaller, localized leaks can be repaired by pouring an epoxy material into the affected line. This seals the leak without blocking the surrounding pipe and can be a relatively affordable (and time-saving) alternative to more complex and disruptive repair methods.

How does the under-slab leak repair process work?

They use a combination of specialized visual and electronic techniques (such as remote cameras or listening devices), plus evaluation of the external traces that water leaks can leave based on extensive professional training.

What causes under-slab leaks?

Homes are built to last, and we tend to think of them as immovable objects. In fact, houses and the earth beneath them are constantly moving, expanding and contracting with the seasons and all sorts of other natural forces. Over time, this repetitive motion can put a strain on vulnerable materials – especially pipes that pass under or through shifting concrete.

What are the top warning signs of an under-slab leak?

By their very nature, other kinds of under-slab leaks can remain hidden for a long time and may cause serious structural damage.

How to detect a slab leak?

Here are some good times to perform slab leak detection: 1 Before undergoing foundation repair 2 After foundation work 3 At the sign of foundation problems 4 If you discover excessively moist areas underneath floor coverings 5 If you hear running water when water should not be in use (usually emanating from the bathroom) 6 Unusually high water bills 7 Before purchasing a new home 8 At least once annually (in climates prone to foundation cracks)

What is a sewer clean out?

A sewer clean out is a plumbing pipe, typically sticking out of the ground that has a removable plug and is found in the main sewer line . This pipe allows plumbers to clear out a blockage which may accumulate in the system and can also be used as an entry point during the slab leak detection phase.

How far can you tunnel under a concrete slab?

Qualified foundation repair specialists have the experience and equipment to tunnel as far as 100 feet beneath an affected concrete slab once they’ve confirmed the location of the leak. Not only is this approach far less invasive and destructive than jackhammering out portions of the slab, it also allows you and your family to stay in your home while repairs are underway. This method creates less noise, dirt and dust, maintains the structural integrity of your home, and also helps to protect your remaining undamaged flooring.

What is a Slab Leak and How Does it Occur?

According to the Survey of Construction on the Characteristics of New Housing, 63.2 percent of newly constructed single-family homes in 2019 have slab foundations. If you live in Texas or another southwest state, there’s a higher chance your home has a slab foundation, as about 95.6 percent of new homes in the region are built on them.

Common Warning Signs You Have a Slab Leak

When dealing with a slab leak, you may first notice that you’re paying higher water bills. There’s also a good chance that you’ll experience a sudden drop in water pressure. Other homeowners hear a rush of water under their house, even when all faucets are tightly shut.

3 Options for Fixing a Slab Leak

If you suspect that you are dealing with a slab leak, the first thing you need to do is call a slab leak repair specialist. These experts can diagnose the problem quickly and pinpoint the location of the leak using modern equipment such as electronic listening tools and line-tracing equipment.

How Long does it Take to Fix a Slab Leak?

Slab leak repair can take anywhere from a few hours to around three days, depending on the method used for the repairs.

Tap the Services of Slab Leak Specialists in Texas

When it comes to slab leak repair, trust the experts with proven experience in the field. Remember that you need to address slab leaks as soon as possible to avoid more serious problems.

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