Water Filtration & Softening
in Ontario, CA
City of Ontario Water delivers 370 PPM extremely 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.
ALL SYSTEMS
Why Ontario Homes Need Water Filtration
Ontario's water is supplied by the City of Ontario Water. The local supply measures 370 PPM of hardness, classified as "Extremely Hard" — well above the 120 PPM threshold that defines hard water.
The utility also uses chlorine/chloramines at roughly 2.3 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 Ontario homeowners.
Ontario Water Profile
Extremely Hard — anything over 120 PPM is considered hard water.
Used for disinfection — causes bad taste and dry skin.
Common Issue in Ontario
Extremely hard groundwater mix causing widespread scaling.
Local Water Filtration Experts Serving Ontario
Ontario is a city in southwestern San Bernardino County, California, United States, 35 miles (56 km) east of downtown Los Angeles and 23 miles (37 km) west of downtown San Bernardino, the county seat. Located in the western part of the Inland Empire metropolitan area, it lies just east of Los Angeles County and is part of the Los Angeles metropolitan area. As of the 2020 census, the city had a population of 175,265.
As a locally based water filtration company serving Ontario and the surrounding Orange County area, truClear Water Filtration Co. understands the specific water quality challenges that Ontario residents face. Our team has installed hundreds of whole-home filtration and softening systems in Ontario homes, giving us firsthand experience with the mineral content, scale behavior, and chlorine levels characteristic of the City of Ontario Water supply.
Whether you live in a newer Ontario 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.
See the Damage Hard Water Causes
At 370 PPM, Ontario water is packed with calcium and magnesium. Over time, these minerals crystallize inside your pipes, water heater, and appliances.
- Clogged pipes reducing water pressure
- Destroyed heating elements in water heaters
- White crusty buildup on faucets and showerheads
- Shortened appliance lifespan by up to 50%
* Drag the slider to compare scale buildup vs. protected pipes
Filtration Systems Built for Ontario Water
Four premium filtration solutions — we'll help you pick the right one based on your free in-home water test.
3-Stage Premium
Stainless Steel System
Ultimate protection with lifetime warranty. Maximum filtration and salt-free scale prevention.
3-Stage Standard
High-Capacity System
Excellent whole-home filtration and scale control at an incredible value.
Single Tank System
Space-Saving Design
Advanced Filtersorb SP3 technology protecting your plumbing, fixtures, and appliances.
Reverse Osmosis
Under-Sink Drinking Water
Bottled-quality water right at your kitchen sink. Removes 99% of dissolved solids.
Get Cleaner Water in Ontario in 3 Easy Steps
Call or Text Us
Reach out for a free, no-obligation consultation. We answer fast.
Free Water Test
We test your Ontario home's water and recommend the right system.
Pro Installation
Professional Installation by Applied Plumbing & Rooter, Inc. — CA License #1151992
Ontario Water Filtration FAQs
Common questions from Ontario homeowners about our water filtration systems.
Also Serving Areas Near Ontario
We provide the same premium water filtration and free testing to homeowners in the surrounding communities.
Ready for Pure Water in Ontario?
Lock in your $300 savings and 50% off reverse osmosis — plus 3 years of complimentary filter & media replacements.