Los Angeles Department of Water and Power delivers 270 PPM hard water to your home. Our whole-home filtration systems remove hardness, chlorine, and scale — for softer skin and better-tasting water from every tap.
Los Angeles's water is supplied by the Los Angeles Department of Water and Power. The local supply measures 270 PPM of hardness, classified as "Hard" — well above the 120 PPM threshold that defines hard water.
The utility also uses chlorine/chloramines at roughly 1.8 mg/L for disinfection. While safe to drink, these leave a chemical taste and odor and can dry out skin and hair. The high mineral content causes scale buildup on fixtures, glassware, and appliances — the most common water complaint we hear from Los Angeles homeowners.
Hard — anything over 120 PPM is considered hard water.
Used for disinfection — causes bad taste and dry skin.
Hard water scale and chloramine taste across the metro.
Los Angeles is a city in and the county seat of Los Angeles County, California. With an estimated 3.87 million residents within the city limits as of 2025, it is the second-most populous city in the United States, behind New York City. The city has an ethnically and culturally diverse population and is the principal city of a metropolitan area of 12.9 million people. Los Angeles is known for its Mediterranean climate, ethnic diversity, Hollywood entertainment industry, and sprawling metropolitan area.
As a locally based water filtration company serving Los Angeles and the surrounding Orange County area, truClear Water Filtration Co. understands the specific water quality challenges that Los Angeles residents face. Our team has installed hundreds of whole-home filtration and softening systems in Los Angeles homes, giving us firsthand experience with the mineral content, scale behavior, and chlorine levels characteristic of the Los Angeles Department of Water and Power supply.
Whether you live in a newer Los Angeles development or an established neighborhood with older plumbing, our free in-home water test will reveal exactly what's in your water — and our licensed installers (Applied Plumbing & Rooter, CA Lic. #1151992) will recommend the right system for your home's specific needs.
At 270 PPM, Los Angeles water is packed with calcium and magnesium. Over time, these minerals crystallize inside your pipes, water heater, and appliances.


* Drag the slider to compare scale buildup vs. protected pipes
Four premium filtration solutions — we'll help you pick the right one based on your free in-home water test.
Stainless Steel System
Ultimate protection with lifetime warranty. Maximum filtration and salt-free scale prevention.
High-Capacity System
Excellent whole-home filtration and scale control at an incredible value.
Space-Saving Design
Advanced Filtersorb SP3 technology protecting your plumbing, fixtures, and appliances.
Under-Sink Drinking Water
Bottled-quality water right at your kitchen sink. Removes 99% of dissolved solids.
Reach out for a free, no-obligation consultation. We answer fast.
We test your Los Angeles home's water and recommend the right system.
Professional Installation by Applied Plumbing & Rooter, Inc. — CA License #1151992
Common questions from Los Angeles homeowners about our water filtration systems.
We provide the same premium water filtration and free testing to homeowners in the surrounding communities.
Lock in your $300 savings and 50% off reverse osmosis — plus 3 years of complimentary filter & media replacements.