Del Mar runs its own water and sewer: the City maintains the public sewer, but the private lateral from the building to the main is the owner's to clear and repair. The water is hard, averaging about 13.4 grains per gallon. Call the number on this page to be connected with a local plumber in Del Mar.

Signs a Del Mar business needs a plumber
- Drains backing up in more than one restroom
- A cleanout overflowing after a busy weekend
- Scale on espresso machines, ice makers and dish equipment
- Water heaters losing capacity or leaking at fittings
- Corroded hose bibs and exterior valves
- A sewer smell outdoors near the property line
How Del Mar's system works
The City of Del Mar buys untreated water from the San Diego County Water Authority. The City of San Diego treats it at the Miramar Water Treatment Plant, and it's stored in Del Mar's four potable water reservoirs. It's chloraminated and hard, with an average of 229 ppm, or 13.4 grains per gallon, and a range of about 10.1 to 14.5. That level builds scale fast in commercial water heaters, steamers and dishwashers. The City has also completed its initial lead service line inventory, linked from its water quality report.
Sewer is where Del Mar businesses should pay attention. The City maintains the public system, but the private lateral that connects a building to the City main belongs to the property owner, who clears and repairs it with a private plumber. Del Mar says most sewer backups come from clogged private plumbing, so call a plumber first and Public Works only if the City system seems to be the problem. The City has no records of private laterals, since it didn't install them, so a plumber has to locate the line, often with a camera and locator. Repairs in the public right of way need an encroachment permit from the Planning Department. The City is protective of its beaches and lagoons, which is another reason to fix a leaking lateral quickly.
For City water or sewer system problems, call Public Works at (858) 755-3294; after hours, North County Dispatch is 858-756-1126. Building and Safety Services takes mechanical, electrical and plumbing permit applications online through eTRAKiT, with plan review by EsGil. Building questions go to (858) 375-9514, and inspections to (858) 375-9528. Gas is SDG&E; for a gas smell, clear the building, then call 911 and SDG&E at 1-800-611-7343.
What affects the cost
- Locating an unrecorded private lateral before repairs
- Work in the public right of way and the encroachment permit
- Descaling or replacing heavily scaled equipment
- Scheduling around dining and guest hours
- Patching finished surfaces after access
What happens on the call
Describe the business, the symptoms and whether you can keep operating. You'll be connected with an independent local plumber who takes commercial work in Del Mar. Ask what the first visit covers and how pricing is set.
Commercial Plumbing questions in Del Mar
Who do we call when a sewer backup may be coming from the public main?
Does the business own the sewer lateral out to the street?
How does hard water affect commercial water heaters and kitchen equipment?
How can a restaurant keep grease from clogging its sewer line?
More plumbing services in Del Mar
Commercial Plumbing nearby
Sources
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