Real Results, Less Risk
Chain knockers clear roots and mineral scale while keeping wall thickness intact. After cleaning, we camera-inspect the line to confirm results and check for structural defects.
Why We Use Chain Knockers (and When We Still Jet)
Hydro jetting is powerful—but on older clay, cast iron, or Orangeburg, it can be too aggressive. Our go-to method is Picote chain knocking: a controlled way to remove roots and scale without damaging the host pipe.
When Cleaning Isn’t Enough
If roots keep coming back or the pipe is cracked/offset, we can install an epoxy liner to restore structure and stop intrusion—without digging up landscaping.
Chain Knockers — Best For
- Older pipes (clay, cast iron, Orangeburg)
- Root intrusion and heavy scale
- Pre-lining surface prep (ensures epoxy bonds)
- Situations where you want control over aggressiveness
Hydro Jetting — Great When
- Newer PVC/ABS lines with grease/silt buildup
- Commercial kitchens and long grease lines
- Clearing soft obstructions quickly
- Follow-up rinse after mechanical cleaning
Protecting Your Pipe
We start with a camera inspection to identify material, diameter, and defects. Then we select the right chain size and RPM for a safe clean. If the pipe qualifies, we can install a trenchless liner to lock out roots and restore flow.