Lefty's Plumbing
24/7 Emergency Service Available
Water Treatment

Whole-Home Filtration in San Diego

Sediment, chlorine taste, and off odors treated at the point of entry so every tap in the house delivers cleaner water. Pairs with a softener for the full solution.

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

Whole-Home Filtration

  • Sediment prefiltration
  • Carbon chlorine and taste reduction
  • Integration with softener and RO
  • Annual filter service
  • Custom sizing based on water report

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

Do I need this if I have RO?+

RO handles drinking water. Whole-home filtration protects the plumbing and appliances behind every tap.

How often are filters changed?+

Typically annually for sediment and carbon. Included with Gold and Platinum plans.

Will it change my water pressure?+

Properly sized systems have negligible pressure loss.

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.

4.9★ from 312+ reviews

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.