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Plumbers of Pennsylvania
Plumbing · Pennsylvania
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Clogged Drain

Once more than one fixture backs up at the same time the blockage is past the individual trap and into the house drain, which is the point to stop running water and call.

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When this becomes an emergency

What a pro does

The first job is figuring out how far down the problem sits. One slow sink is a local problem. Two fixtures backing into each other means the main stack or the house drain, and those get handled very differently. Cast iron waste lines are still everywhere in Pennsylvania housing, from the twin homes in Allentown and Bethlehem up through the mining-era doubles in Hazleton, and cast iron doesn't clog the way plastic does. It scales. Rust and grease build a rough layer on the inside wall of the pipe until the working diameter is half what it started as, so a bit of coffee grounds that would pass in PVC catches and holds. A plumber matches the cable and the cutting head to that, because the wrong tool in brittle iron does real damage rather than clearing anything. Access is its own problem in a deep basement, since the cleanout often sits behind a converted coal bin. Where the same drain keeps closing up, a camera run answers whether it's habit or a defect in the pipe.

Frequently asked questions

Air. A full column of water dropping down the stack pushes air ahead of it, and if the drain is partly blocked below that air has to escape through the nearest opening. The floor drain is usually the lowest one. It's a fair sign the restriction is in the main line rather than any single fixture.
Often yes. Scale narrows the pipe permanently, so once a line has lost half its bore it catches things it used to pass. Clearing restores flow but doesn't take the scale off the wall unless the work is done specifically for that.
The waste lines usually aren't, though the two houses commonly share a wall the stack runs in. What they can share is the sewer lateral out to the street in some older builds, which matters more for backups than for a slow sink.
It builds slowly and it doesn't need much. Warm grease goes down liquid and sets in the cold horizontal run under a Pennsylvania basement floor, where it collects lint from the washer and hair from upstairs until the passage closes.

Clogged Drain?

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Plumbing in PennsylvaniaBurst PipeDrain CleaningEmergency PlumberNo Hot WaterOverflowing ToiletPlumber Near MeSewer Line RepairSlab LeakSump Pump RepairWater Heater RepairWater Leak Repair

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