Main Sewer Line Repair in McDonough, GA

Nobody thinks about main sewer line repair when a storm rolls through. Yet a house whose drains gurgle, slow down or back up during and after heavy rain is often saying something about its sewer line. For McDonough homeowners, that pattern deserves attention, because it usually means water is getting into the pipe where it should not.

How rain finds its way into a sewer line

A building sewer is meant to carry only wastewater from the house. Rain reaches it in two main ways. Once the soil around the pipe is soaked, groundwater can seep in through cracks, open joints and the gaps roots have widened; plumbers call that infiltration. Surface water can also pour straight in through a broken or missing cleanout cap, or through a downspout, yard drain or area drain that someone tied into the sewer years ago; that is inflow. Either way, the pipe ends up handling far more water than it was sized for.

Signs the trouble is tied to the weather

• Drains slow or gurgle during downpours and recover a day or two later
• The lowest drain in the house takes on water during storms even when no fixtures are running
• Water stands in the outdoor cleanout after rain but not in dry spells
• Sand, silt or soil comes back when the line is cleared

When the public sewer is part of it

Sometimes the private line is fine and the public main is overloaded. In very heavy rain, public sewers can fill and push water back up the service lines connected to them, and homes with low fixtures feel it first. If people on your street report the same trouble in the same storm, the public system is a likely factor, and the sewer provider should hear about it. A backwater valve on the building sewer can guard the house against that kind of backflow, and it is a separate decision from repairing the pipe.

Finding where the water gets in

A sewer camera inspection is the main tool. Run during or soon after rain, it can catch water trickling or spurting through joints and cracks, which pinpoints each entry point. In dry weather the same defects may show only as stains, root hairs or little deltas of soil. The camera also reveals whether a cleanout riser is cracked below grade. Checking downspouts and yard drains for a hidden tie-in to the sewer is a simple step that is easy to skip.

Fixing a line that takes on groundwater

• Open or broken cleanout cap: a new cap or riser, often the simplest fix of all
• Downspout or yard drain tied into the sewer: disconnect it and send the water elsewhere, with drain excavation if new yard piping is needed
• One or two leaking joints: a spot repair or a short sectional liner
• Leaks along much of the line: a full-length liner if the pipe still holds its shape, or replacement through sewer excavation if it does not

For more on each method, read about main sewer line repair and replacement across Georgia.

Sewer connection rules in McDonough

McDonough's Building and Inspection Division reviews plans, inspects construction in the city and issues permits, with a separate application form for plumbing. The city code adds rules for the sewer itself: work on a public sewer takes a written permit from the city maintenance engineer, the building sewer is inspected before any part of it is buried, and the connection to the public line is made by an authorized city representative. A repair that reaches the tap has to be planned around those steps.

Questions about rain and sewer backups in McDonough

Does rainwater getting into the line do lasting harm?

It can. Groundwater seeping in through a crack often carries fine soil with it, and as that soil washes away, the pipe loses the support around it, which can lead to a sag or a collapse later. The extra water also leaves less room for wastewater during storms. A line that leaks in wet weather is worth repairing even if it drains well in dry spells.

Is it a problem to have a downspout connected to the sewer?

It sends rainwater into a pipe sized for household wastewater, which can overload your line and the public system during storms. Many sewer providers do not allow such connections. If you find one, ask about rerouting the downspout to the surface or to a separate drain, and check with your sewer provider about its rules.

Will a backwater valve stop rain-related backups?

It can keep sewage from an overloaded public main from flowing back into the house. It does nothing about groundwater leaking into your own cracked pipe, though, and it needs occasional checking to keep working. Whether one suits your house depends on how the line is laid out and where the low fixtures sit.

Before the next storm

Drains at your McDonough home seem to follow the weather forecast? A look at the line in wet weather can show exactly where the water is getting in, and Alpha Plumbing and Sewer can be reached at (404) 409-4448.