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Most people assume a plumbing backup means one thing: something is stuck in the drain. That might be grease buildup, a wad of hair, a foreign object lodged somewhere in the line, or all of the above and more.
The solution that comes to mind: Pull the blockage out, clear the pipe, problem solved. Sadly, that’s not always the case. Sagging drain lines cause backups too, and they do it without a single blockage anywhere in the system.
In this brief article brought to you by Rooter Guard, we give some insight into how drain lines are supposed to work, and what happens when they stop working that way. If you’d rather consult a trained plumber, then contact Rooter Guard to get in touch with a local professional.
Drain lines do not rely on pressure to move wastewater. Instead, they rely on gravity.
Every pipe in a properly installed drain system runs at a calculated downward slope (typically a quarter inch of drop for every foot of horizontal run). That slope keeps wastewater moving consistently in one direction: toward the main sewer line and away from the building.
When that slope gets interrupted, the system stops performing the way it was designed to. Wastewater slows, solids settle out of the flow and collect at the low point, and that collection grows over time.
Whether you drain snake it or use a plunger, the backup returns in the same location… because the sag that caused the original accumulation is still there.
Dealing with a backup that keeps coming back in the same spot? Call Rooter Guard today. Our camera inspection service finds out whether a sag is behind the repeat.
Drain lines installed inside walls, under floors, and beneath concrete slabs depend on the supports holding them in place to maintain their adequate slope over time. However, several things compromise those supports:
A drain line sagging inside a wall, beneath a concrete slab, or under the yard typically gives no outward indication of the problem until the backup it causes arrives at a fixture inside the home.
A camera inspection sends a high-definition camera through the drain line and delivers live footage of the pipe's interior directly to a monitor. You and the plumber can see the exact location and severity of any sag.
That footage does two things. First, it confirms whether a sag exists and identifies its precise location. Second, it shows the homeowner directly what is happening inside the line.
At Rooter Guard, our camera inspection service also catches misaligned joints, separating connections, and early-stage root intrusion alongside any sagging.
Don’t wait until a sag in the drain line causes repeated backups, sewage intrusion into living spaces, or a complete pipe failure beneath a concrete slab. Periodic drain line inspections, with camera inspection, catch developing problems at the stage where the fix is still straightforward.
The uniformed plumbers at Rooter Guard are happy to schedule an appointment or come out for emergency plumbing repair service. Our dedicated team has you covered.
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