Combo Systems in Costa Mesa, CA
Most of Costa Mesa runs on local groundwater from Mesa Water District. That groundwater averaged about 6.6 gpg of hardness in 2025 and is disinfected with chloramine. Purest Water Solutions delivers combo systems across Costa Mesa, sized for what Mesa Water District actually delivers to your tap rather than a generic spec.
Combo Systems from Purest Water Solutions: a softener and whole-house filter working together at the main line, with an optional point-of-use RO for drinking water. In Costa Mesa, that means working against hardness, chloramine, dissolved solids, the contaminants that most affect Mesa Water District water in your service area.
Combo Systems for Costa Mesa Water
For Costa Mesa homes, a combo system is overkill on hardness alone. The right Costa Mesa combo is more often a whole-house filter for the disinfectant residual plus a kitchen-sink RO, with a softener only added when you actually have about 6.6 gpg water reaching your tap.
What is in Costa Mesa water
Mesa Water District supplies Costa Mesa and surrounding areas. Water in Costa Mesa tests at about 6.6 gpg. You can review the full report on the Mesa Water District water quality page.
Why Costa Mesa households choose Purest Water Solutions
Frequently Asked Questions
Why do Costa Mesa homes need combo systems?
Mesa Water District supplies most of Costa Mesa with local groundwater, including deep amber water from the Mesa Water Reliability Facility, where nanofiltration removes the natural color left by ancient buried redwoods. In 2025 its groundwater averaged 6.6 gpg of hardness, with samples from 1.2 to 17 gpg. Combo systems pair softening with whole-house filtration and an optional kitchen-sink RO so the hardness, chloramine, dissolved solids are each addressed by the right stage.
Do you serve neighborhoods like Mesa Verde, Eastside Costa Mesa, South Coast Metro in Costa Mesa?
Yes. Purest Water Solutions serves Mesa Verde, Eastside Costa Mesa, South Coast Metro, and the rest of Costa Mesa, CA. We also work in neighboring Newport Beach, Irvine, Huntington Beach. One service truck typically covers the whole metro on the same day.
Where can I look up Costa Mesa's water quality report?
Mesa Water District publishes an annual water quality report covering your service area. The current report is online at https://www.mesawater.org/water-quality. Bring questions about it to your free water test and we will walk through it together.
Schedule Combo Systems in Costa Mesa
Call (949) 873-1129 or book a free in-home water test. We will walk through your Mesa Water District report and what it means for your household before recommending any equipment.
Nearby service areas
More services in Costa Mesa
Costa Mesa water guides
Learn More
Not sure whether a combo system or a standalone filter is right for your home? See our whole house water filtration page for Costa Mesa for a breakdown of chloramine and hardness treatment options on Mesa Water District supply.