Fix it

Why do my drains keep backing up?

One slow fixture is a local clog. Several fixtures backing up together — especially at the bottom floor of the house — means the main sewer line is restricted, and everything upstream shares one exit.

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Snap a photo or describe what you see and the FinderlyFix assistant tells you what is likely going on, before you spend anything.

What it usually is

  1. Tree roots in the main line

    Roots find joints in older clay and cast iron lines, then grow into a net that catches everything. Backups that recur seasonally, or improve after cabling and return, fit roots.

  2. Grease and waste narrowing the main

    A decades-old accumulation narrows the bore; the house limps along until one day it does not. Slow everything, worst at the bottom floor, is the pattern.

  3. A bellied or broken pipe section

    Settling can sag a buried run so solids pool in the low spot. Cabling clears it briefly; the geometry refills it. Only a camera makes this visible.

  4. Flushed wipes and non-dispersibles

    "Flushable" wipes do not break down; they mat together at any rough spot and seed a clog that regular paper would have passed.

Safety first: Sewage coming up at a floor drain or tub is a stop-everything moment: no laundry, no flushing, no showers until the line is opened.

What you can check yourself

Map the behavior: which fixtures, which floor, does the bottom-floor drain gurgle when an upper one empties? Locate your cleanout cap outside and check whether it stands full — a full cleanout confirms the main. Stop running water immediately when a backup starts; every gallon has nowhere to go but a floor drain.

When it’s a job for a pro

Main-line work is machine cabling or hydro-jetting through the cleanout, and a camera pass afterward tells you WHY it keeps happening — roots, belly, or break — which is the difference between a maintenance plan and an excavation quote.

Main-line cabling typically runs $250 to $600; hydro-jetting $400 to $900; a camera inspection $150 to $350. Root-cut maintenance on a known line is far cheaper than reactive weekend calls.

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