In San Marcos, Vallecitos Water District maintains the sewer mains, and the lateral serving your property is the owner's responsibility. When that line backs up, cracks or fills with roots, a private plumber repairs it. Call the number on this page to be connected with a local plumber in San Marcos.
San Marcos sewer basics
Vallecitos Water District provides water, wastewater and reclamation service to San Marcos and parts of neighboring cities. The district's engineering pages say it maintains the water and sewer mains, while lines installed to serve private property belong to the owner, and sewer laterals are put in by private contractors at the owner's expense. With a median home built around 1994, per City-Stats census figures, San Marcos has younger housing than most of the county, and plastic laterals are the norm. That doesn't make them trouble-free: settled soil, root pressure at fittings and damage from later digging all cause failures. Because the district doesn't install or own laterals, it won't send a crew to fix one; the repair is arranged and paid for by the owner.
What to do now
- Stop using water in the house, including laundry and the dishwasher.
- Check the street. An overflowing manhole or a backup at several homes is a matter for Vallecitos.
- If only your home is affected, locate the cleanout, usually a capped pipe near the foundation or in a side yard.
- Keep people and pets away from any spilled wastewater, and bag soaked rugs instead of washing them.
- Call to be connected with a local plumber and say which fixtures are backing up.
Symptoms and likely causes
| Symptom | Likely cause |
|---|---|
| Shower drain fills when the toilet flushes | Blockage in the main building sewer |
| Gurgling from more than one fixture | Partial blockage farther down the line |
| Backups that return after clearing | Roots or an offset joint catching debris |
| Soggy strip of lawn over the line | Cracked or separated pipe |
| Slow drains soon after hardscape or pool work | Line damaged or crushed during digging |
Cost factors
- Depth of the lateral and length of the damaged section
- Patios, driveways or retaining walls over the line, common on sloped lots
- Lining the existing pipe versus excavating and replacing it
- Whether a cleanout has to be added
- A permit from the City of San Marcos Building Division if the repair calls for one; for homes built on or before January 1, 1994, the city's residential permit packet includes an owner certificate covering non-compliant toilets, showerheads and faucets
Sewer Line Repair questions in San Marcos
Which part of the sewer pipe is mine to fix, and which belongs to the sewer agency?
How do I find out who provides sewer service at my address?
Can the sewer line on a newer house still fail?
What happens to landscaping, pavers or a driveway during the repair?
More plumbing services in San Marcos
Sewer Line Repair nearby
Sources
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