Lefty's Plumbing
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Water Treatment

Water Softeners in San Diego

San Diego water is hard - hard enough to scale water heaters, shorten appliance life, and leave spots on everything. A properly sized softener is the fix.

24-hour supportAvailable around the clock for emergencies.
10 years of experienceLicensed San Diego plumbers you can trust.
100% satisfactionGuaranteed workmanship, backed in writing.
What's included

Water Softeners

  • Salt-based ion exchange softeners
  • Sizing based on hardness and demand
  • Bypass and drain setup
  • Salt refill and annual service
  • Included in Gold and Platinum plans

Need it handled today?

Give us a call. Same-day windows available.

Why this comes up in San Diego

Countywide hardness runs 15 to 20 grains per gallon on imported water from the Colorado River Aqueduct and State Water Project. Coastal blends around La Jolla and Pacific Beach vary a little; inland well water in Poway, Ramona, and Alpine adds iron and sulfur. We test first, then design.

FAQ

Common questions

How hard is San Diego water?+

Regularly above 15 grains per gallon - well into the 'hard' range. Scale buildup is why appliances fail early here.

Where does the softener go?+

Typically in the garage or a side yard at the main water entry point.

How often do I add salt?+

Every 4 to 8 weeks depending on household size.

Where does San Diego's water come from and why is it hard?+

About 80% is imported from the Colorado River Aqueduct and State Water Project. Both are mineral-heavy sources, which is why countywide hardness runs 15 to 20 grains per gallon.

Is my well water different from city water?+

Yes. If you're in Poway, Ramona, Alpine, or parts of East County on well water, we run a full lab panel first. Wells often add iron, sulfur, or elevated TDS on top of hardness, and the system design is different.

Our Promise

The Lefty guarantee

Written guarantee

Every job backed in writing. If it fails, we come back.

Licensed & insured

Fully licensed technicians, insured, and background-checked.

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Trusted by San Diego homeowners across the county.

Ready when you are

Got a leak? Give Lefty a call.

Real diagnostics. Real prices. Real people who show up.