They charged the homeowner about $6000 to replace the 12 feet of sewer line.
Sidenote: If part of the line is deteriorated, how long do you think it will be before the rest of the pipe that was made and installed at the same time becomes deteriorated (if it’s not already)? The previous company tunneled the 12 feet from the outside to replace 12 feet of the deteriorated cast iron kitchen line. And its sewer line tee’d into the kitchen line about 20 feet or so from the kitchen sink. The washing machine was at the back center of the house by the garage. The kitchen sink line was basically a straight line all the way across the house to the bathrooms. The main sewer line went to the front of the house and both bathrooms touched the left outside wall. At some point in the past, another company tunneled 12 feet starting from the outside of the house at the kitchen sink which was touching the outside wall on the right side when facing the house. A Real Life ExampleĪ good example of this is a job we had in Mesquite, TX. And sometimes there’s another option altogether. Sometimes it is possible to replace part of the pipe now and some of it later. It’s especially important to take a long-term view rather than an immediate one. This is why some might opt for the repair instead.īut affordability, or lack thereof, makes it that much more important to consider all your options. Now we understand not everyone can afford to replace all of the cast iron pipes under a slab at once. So with cast iron sewer pipes, especially older pipes, it doesn’t make sense to locate or repair the leak or leaks. As the metal repeatedly comes into contact with the wastewater that runs through it, it deteriorates. The cast iron on each side of the repair will go bad e.g. It is important to note that any time an under slab cast iron sewer pipe is repaired, meaning just the spots with leaks are repaired, what was just one problem or leak will be at least 2 problems in the same spot in the future. With this in mind, any cast iron pipe installed under the slab will require replacing in the next 5 to 20 years. However, many houses in the area were built using PVC pipe even as far back as the late 1970s. The last houses constructed with cast iron pipe in DFW were built around 1986. And while there’s no way to know when your pipe will go bad, there is no doubt that they will go bad. The truth is there are so many variables and factors that contribute to the deterioration of cast iron pipe. Here at In-House plumbing, we’ve seen a 20-year-old pipe that was no good and 50 year-old-pipe that was fine. So it’s in your best interest to take action to prevent any possible or further structural damage to your house.īut if your system is made of cast iron the question becomes: Should you repair the leaks? Or go ahead and replace the pipes? Repair or Replace Under Slab Cast Iron PipesĬast iron pipe was designed to last 50 years. If you have a sewer leak or leaks under the concrete slab of your home’s foundation, it’s possible it could cause cracks in your walls or foundation, sloping floors, or more.Īnd once you find out you have a sewer leak, most likely it’s been there for a significant amount of time.
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