
Service Area
Rosarito
Where we live, work, and stock parts.
Serving Rosarito, Tijuana, Playas de Tijuana, Ensenada, and Valle de Guadalupe.
Local Context
Water service in Rosarito
Rosarito is our home and our headquarters. Municipal water is delivered by CESPE-Rosarito, sourced from the Colorado River and the Rosarito desalination plant on the coast. Most homes pull from a street main into a pila (cistern), then up to a rooftop tinaco — and that storage is where a lot of water-quality problems start.
Typical Rosarito tap water tests at 300–600 ppm TDS and 200–400 ppm hardness. That's well above the threshold for hard water, and the cistern-and-tinaco pattern means heat, sediment, and bacterial growth are part of the day-to-day reality if you don't filter at the point of entry.
What To Expect
What's typical for Rosarito homes
- Sediment and chlorine from aging municipal distribution
- Hardness 200–400 ppm causing scale on fixtures and water heaters
- Bacterial growth in pila and tinaco storage
- Seasonal taste and odor changes when desalination output mixes with Colorado River supply
- Pressure cycling that loosens fittings on unsupported systems
How We Work
How we serve Rosarito
- Rosarito is our base — same-week scheduling for water tests and installs is the norm, not the exception.
- We stock iSpring cartridges, UV lamps, RO membranes, and replacement parts locally so you're never waiting on cross-border shipping.
- Most homes here benefit from a whole-house filter with UV at the point of entry, plus an RO system at the kitchen sink for drinking water.
Free Service
Free water test in Rosarito
Free in-home water tests are available daily across Rosarito — we measure TDS, hardness, chlorine, pH, and a coliform indicator at the supply line, the cistern, and your tap so you see exactly where contaminants enter.
Recommended Systems
Featured systems for Rosarito
Our most common configurations for the water profile we see in Rosarito.

Whole-House Filtration — Best
3-stage KS carbon filtration with PFAS, lead, and heavy-metal removal plus UV sterilization at the point of entry.
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Tankless RO — Best
500 GPD tankless reverse osmosis with alkaline remineralization and a brushed-nickel designer faucet.
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Water Softener — Better
45,000-grain water softener with automatic backwash regeneration cycle.
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Ready for clean water in Rosarito?
Tell us about your home and we'll come test your water and recommend the right system. No cost, no obligation.