Unless you are involved in the construction and piping industry, or work in civic engineering, you probably aren’t familiar with trenchless technology and its many applications. Although trenchless technology dates back to the 1930s when it was first used in mining, it’s still unfamiliar to many people even as it becomes the preferred way to handle work such as sewer line repair and replacement.
We provide trenchless repair in Tacoma, WA for residential, commercial, and industrial clients, as well as a range of other trenchless and pipe inspection services. We’d like to address a few of the frequent questions people have about trenchless repair work.
1. Does “trenchless” mean there’s no digging done at all?
Not necessarily. “Trenchless” means the service doesn’t require digging a large trench to access a pipe for repairs, which was the standard method until trenchless technology started to spread. In many repair situations, our technicians can access and repair the pipe through the cleanout: we slip a pipe liner (Cured-in-Place Piping, CIPP) into the cleanout, where a carrier takes it to the repair spot and adheres the liner along the pipe interior. However, in some situations, we must access both sides of a buried pipe, which requires digging a small hole to reach the other end.
2. Is trenchless always better than excavation methods?
In almost every case, yes. Digging to reach a pipe requires extra equipment, time, and labor. It also rips up property, creating disruptions. Although any digging is refilled and landscaped, it still leaves a lasting impact on the property. Using trenchless technology sidesteps all these problems.
3. Is a trenchless pipe repair as durable as other methods?
When people learn about how trenchless repairs are done—placing a liner inside the old pipe and securing it with epoxy—they may wonder if this is as long-lasting a fix as older methods. The answer is yes. When we do CIPP repairs on buried lines we use only the best materials. In fact, the materials we use for repairs are usually better than the original piping material—which is why people sometimes opt to have a full trenchless replacement using pipe-bursting
4. How long do trenchless repair jobs take?
We can’t give you a time estimate on a blog since we don’t know the specific work you need done. In general, the work takes far shorter than using excavation equipment, which often requires a few days. Most residential repair jobs can be done in a few hours. Industrial and commercial work may take longer.
5. How do you know where you need to place the liner?
We use special pipe inspection equipment before we start a job. This sends a camera down into the pipeline which returns images to a monitor through CCTV. We can pinpoint exactly where we need to make the repairs. This is another way of speeding up the process.
Any more questions? Never hesitate to call us for the information you need about pipe repair work.