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Sewer Pipe Descaling

    Sewer & Drain Cleaning

    Cast-Iron Pipe Descaling

    by cinderfire April 3, 2018

    What is Cast-Iron Pipe Descaling?

    Pipe Descaling is a fairly new process utilizing a specialized machine with specific attachments attached to a rotating cable.  This method is a lot safer on cast iron pipes that are in poor shape and cannot be cleaned out using a Hydro Jetter.  With our specialized descaling machine we can scrape the corrosion off the inner walls of the cast iron pipe, so it can be flushed down the sewer.

    About Cast-Iron Pipe

    Cast iron pipe has been a sewer line mainstay for decades and has an average lifespan of 30 to 50 years. Over time however, as metallic surfaces come into contact with moisture, rusting and corrosion naturally set in. As these issues progress, the pipe is weakens and eventually needs to be replaced due to advanced deterioration or failure.

    Rust

    Just as with any metal pipe that comes directly into contact with wastewater, the interior of cast iron pipe will rust over time.  Rusting on the interior of the cast iron pipe has a two-fold effect which reduces the flow of the sewer line. First, rust on the interior of the pipe constricts the interior diameter of the pipe as it builds up. Secondly, this rust creates a rough surface which slows down the rate at which wastewater can flow across the surface.

    Corrosion

    Over time, wastewater flow will etch a channel at the bottom of the pipe. If left untreated will erode through the pipe, weaken the pipe structure, and allow for foreign material to enter the line.  At the same time, wastewater can escape the pipe causing erosion and eventual bellies in the line that will lead to collapse of the pipe.

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Pipe Bursting – Images

New pipe being bursted through old pipe
Pipe Bursting Process
Pipe Bursting Head
Pipe Bursting Pull Device

Pipe Bursting – Video

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Select Trenchless Pipelines, Inc.
  • Home
  • Sewer & Drain Cleaning
    • Hydro Jetting Sewer Drain Cleaning

      Cast-Iron Pipe Descaling

  • Sewer Inspect & Detect
    • Utility & Pipe Locating

      Leak Detection

      Sewer Gas & Odor Detection

      Sewer Video Inspection

  • Trenchless
    • City Saddle “Top HAT” Liner

      Pipe Piercing

      Pipe Bursting

      Pipe Relining

  • About
  • Contact