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Drains & sewer in Mississippi

Heavy rain and hurricane exposure along the Gulf Coast push Mississippi drains and sewer lines to their limits, and storm surge in Gulfport and Biloxi can back up sewers in low areas.

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Plumber working on the drain pipes under a sink

Statewide conditions

Drains & sewer in Mississippi: what to know

Shifting clay soils crack sewer laterals and drains under slabs, and older homes in Jackson's Belhaven and Fondren neighborhoods have cast-iron drains reaching the end of their life. Many coastal homes were rebuilt or elevated after Hurricane Katrina, mixing new plumbing with older connections.

A camera inspection shows whether a recurring backup is a clog, a cracked pipe or a separated joint. A backwater valve helps in flood-prone homes, and clearing the main line before storm season reduces backups.

Climate
Freezes are uncommon in most of Mississippi, but when a hard freeze does arrive, homes built for warm weather, with pipes in attics and exterior walls, are the ones that split.
Typical foundations
Homes are mostly on slabs or crawl spaces, and expansive clay soils in parts of the state can shift buried lines. Most common: crawl spaces, concrete slabs.

Drains & sewer services

Drains & sewer by city in Mississippi

Local pages cover each city's water provider, permit office and housing. Not listed? Check your ZIP code below.

Drains & sewer questions in Mississippi

Do Mississippi homes need backwater valves?

In low-lying and coastal areas, yes. They stop sewer water from flowing back in when the system is overloaded.

Are chemical drain cleaners safe to use?

They can damage older pipes and fixtures, and they make the job hazardous for the plumber if they don't work. A plunger or a drain snake is safer for a single slow drain.

How these problems start and how to choose between repair options is covered in the drains & sewer guide.

More plumbing in Mississippi

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