Common questions. Straight answers.

Hardness comes mainly from dissolved calcium and magnesium. The City of San Diego publishes an average of about 16 grains per gallon for its own system, varying by area and demand; that is not a countywide tap-water reading. Use your serving utility’s report and a sample from the property to establish your own hardness.

Check your serving utility’s current water-quality report to identify its disinfectant. For chlorine or chloramine taste and odor, compare the exact filter model’s reduction claim, rated flow and replacement schedule. A smell alone does not identify its cause, and a chlorine claim does not establish chloramine reduction.

PFAS are a group of manufactured chemicals that can be a drinking-water concern. Check your supplier’s latest results before assuming they are present or absent at your address. If treatment is needed, verify the exact model’s certified claim for the specific PFAS of concern. A routine in-home field screening does not establish PFAS levels; ask a qualified laboratory about the appropriate analysis.

Yes. A private well needs its own testing and maintenance plan. CDC recommends annual testing for total coliform bacteria, nitrate, total dissolved solids and pH, with additional tests guided by local health officials and the property’s history. Use a state-certified laboratory and select treatment from those results. Do not assume a well is safe because the water looks clear.

An ion-exchange softener removes calcium and magnesium hardness and requires salt and regeneration maintenance. A salt-free scale-control device leaves hardness minerals in the water; its scale-control performance depends on the particular technology, water and operating conditions. It is not equivalent to softened water or a general contaminant filter. Compare documented performance and maintenance for the exact model.

Do not expect the same result. A salt-free device leaves the hardness minerals in the water, while an ion-exchange softener reduces them. A scale-control claim does not establish a particular skin feel or improved soap performance. Choose based on measured hardness and the outcome you want, rather than a promised sensation.

Tank material is one part of equipment selection. Compare the exact product’s drinking-water suitability, pressure and temperature limits, warranty and maintenance instructions. A material label alone does not establish contaminant reduction, a longer service life or superiority over every other tank design.

An under-sink carbon filter and a reverse-osmosis system have different treatment functions. Carbon models can carry specific taste, odor or contaminant reduction claims; RO uses a membrane and can reduce dissolved substances covered by the exact model’s performance claims. Neither label means every contaminant is removed. Compare the target contaminant, certified claims, flow, drain needs and replacement costs.

RO can reduce dissolved calcium and magnesium along with other substances. It does not remove every dissolved substance completely. If you are considering a remineralization stage, compare its documented function and maintenance. For questions about your personal mineral intake or a medically restricted diet, ask your clinician rather than relying on a filter recommendation.

Often, but the existing equipment and plumbing need checking. A whole-house system treats incoming water for its specified purpose; an under-sink system treats a selected tap. Ask the installer to check compatibility, pressure, flow, space and any drain connection. Two systems are useful only when each addresses an identified need.

Hardness can contribute to mineral scale and soap-related deposits. Look at actual fixtures and follow appliance maintenance instructions before deciding on treatment. A hardness reading alone cannot predict how many years an appliance will last, calculate your repair bill or diagnose a skin condition.

A hardness test can identify a water characteristic, but it cannot establish why your skin or hair feels dry. Compare your water results and bathing products, and discuss persistent symptoms with a clinician. A softener or conditioner should not be sold as a treatment for eczema or with a promised recovery timeline.

There is no single countywide timeline. Actual buildup depends on the water, use and equipment conditions. Inspect fixtures and follow the manufacturer’s service schedule; use a hardness measurement to investigate scale rather than assuming a fixed number of months until damage or failure.

You can request a free in-home water screening through Filter Pros San Diego. The independent provider confirms appointment availability and which field measurements are included. Ask for the results and an explanation of their limits. This screening is not a complete contaminant analysis or a drinking-water safety certification; laboratory work may require a separate arrangement and charge.

For general planning, EPA’s November 2024 home-treatment guide describes point-of-entry systems as costing thousands of dollars. That is broad national context, not a local installation quote. Your price depends on the treatment need, exact model, plumbing work and ongoing maintenance. Request an itemized written estimate from the independent provider for your property before authorizing work.

Call (858) 400-6508 or use the contact form to request an independent provider referral and a free in-home screening. Share your address, water source, concern and any existing equipment. The provider confirms coverage, scheduling, screening scope and any separate service charges.