When your main sewer line backs up, fixing it requires more than just pouring chemicals down the drain. Professional plumbers follow a strict procedural process to ensure the clog is removed safely, the pipe isn't damaged, and the root cause is actually solved. Here is our step-by-step process using Drain Augers (Snakes) and Hydrojetting.
Step 1: Restoring Initial Flow (The Drain Auger)
Punching a hole through the blockage
If your line is completely backed up and holding murky standing water, we cannot safely hydrojet or use a camera yet. The first step is to establish a basic flow.
We insert a Drain Auger (Plumbing Snake) into the cleanout. A motor spins a long, flexible steel cable with a cutting head down the pipe. When it hits the clog, the spinning head physically punches a hole through the roots, toilet paper, or debris. This allows the backed-up sewage to finally drain out of the pipe.
- The Action: Mechanical cutting, grabbing, and piercing.
- The Result: The standing water drains, but grease and stubborn residue usually remain stuck to the pipe walls.
Step 2: Video Camera Inspection
Diagnosing the root cause
Once the standing water is gone, we send a high-definition fiber-optic camera down the empty line. This step is mandatory before hydrojetting.
We need to see exactly what caused the backup. If the auger left behind thick rings of grease, heavy scale buildup, or a massive wall of tree roots, we know the pipe needs to be hydrojetted. However, if the camera reveals that the pipe is crushed, collapsed, or made of deteriorating cast iron, we will not hydrojet, as the extreme water pressure could destroy the fragile pipe.
Step 3: The Hydrojetting Process
Scouring the pipe walls clean
If the pipe is structurally sound but heavily coated in sludge or roots, we bring in the Hydrojetter. This machine is essentially a highly specialized, heavy-duty pressure washer for the inside of your plumbing.
We feed a high-pressure hose with a specialized multi-directional nozzle into the line. The machine blasts water at 3,000 to 4,000 PSI. Forward-facing water jets obliterate the remaining blockage, while powerful rear-facing jets propel the hose forward and aggressively scour the interior walls of the pipe. The sheer force washes years of grease, scale, and pulverized roots downstream into the city's main sewer system.
- The Action: High-pressure water scouring and flushing.
- The Result: The pipe is restored to its original, full-flow capacity, leaving nothing behind for future clogs to snag on.
Step 4: Final Camera Verification
Ensuring the job is complete
After the hydrojetting hose is removed, we send the camera down the line one final time. We review the footage with you to verify that the pipe walls are completely clean, the roots are entirely gone, and your plumbing is flowing freely and safely.
Process Overview: Auger vs. Jetting
| Method | How It Works in the Process | What It Accomplishes | Limitations |
|---|---|---|---|
| Drain Auger (Snake) | Mechanically driven steel cable spun through the pipe. | Punches a hole to restore flow; grabs foreign objects and wipes. | Leaves grease and residue on the pipe walls; roots grow back quickly. |
| Hydrojetting | High-pressure water nozzle fed through the line. | Washes and scours the entire inside of the pipe clean. | Requires an empty pipe and a camera inspection first; unsafe for broken pipes. |
Need Your Drains Cleared the Right Way?
Don't settle for a temporary fix. Our San Antonio plumbers use the complete auger, camera, and jetting process to ensure your pipes stay clear.
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