Reverse Osmosis Drinking Water Systems
A.J. Alberts installs reverse osmosis drinking-water systems. RO uses a membrane to reduce selected dissolved substances. Choose a system for the substances you want to reduce, with the exact model's performance documentation and maintenance requirements in view.
Plan Service for Your Home
Start with your water source, existing equipment, and the issue you want to solve. Request a written quote. Call 651-738-0580.
Check the Specific Reduction Claim
Reverse osmosis can reduce a range of dissolved substances, but performance differs by system. Read the product label and certification listing for each concern, such as lead, fluoride, or PFAS. A low total-dissolved-solids reading does not prove that water is free of all health contaminants.
For PFAS, look for an explicit PFAS reduction claim for the exact model. An NSF/ANSI 58 logo alone is not proof of that claim. EPA cautions that certification does not necessarily establish reduction to its current drinking-water limits.
Treat the Water You Intend to Use
An under-sink unit treats water at a designated drinking and cooking tap. A whole-home system treats the incoming supply. These serve different goals; a regional PFAS history does not make whole-home RO necessary.
Before installation, review available cabinet space, water pressure, drain connection, faucet location, and any desired refrigerator connection. Select pretreatment only when the incoming water and chosen system require it.
Under-Sink Reverse Osmosis Installation
Most reverse osmosis systems we install are under-sink units that feed a dedicated drinking-water faucet at the kitchen sink and, when wanted, the refrigerator line. Installation includes the storage tank, the drain connection with an air gap or approved alternative, the shutoff and supply connection, and the faucet itself, all to Minnesota plumbing code.
Ask for the exact model in writing, the footprint it needs under the cabinet, its rated daily production, and the replacement schedule and cost for the pre-filters, membrane and post-filter. A.J. Alberts services the systems it installs and can evaluate an existing under-sink system when the model number and service history are available.
Filters, Membranes, and Water Use
RO produces treated water and a reject-water stream. Water use varies by model and operating conditions, so compare the selected product's specifications.
Replace cartridges and membranes according to the manufacturer's instructions and capacity limits. Taste and appearance are not reliable indicators of PFAS reduction. Ask about replacement costs and any appropriate follow-up testing.
Reverse Osmosis Drinking Water Systems Questions
Does every reverse osmosis system remove PFAS?
Do not assume so. Verify the exact system and its certified PFAS reduction claim. A certification for a different substance does not establish PFAS performance.
Will RO remove fluoride or sodium?
RO can reduce these substances, but the extent is product-specific. Check the selected system's label and performance data rather than assuming complete removal.
How often do filters need replacement?
Follow the exact model's instructions and capacity limits. Incoming water, usage, and system design affect service needs; there is no universal replacement interval.
How much does installation cost?
Cost depends on the selected system, access, plumbing, and any refrigerator connection. Ask for a written quote and ongoing filter costs.
What does the free water test tell me?
Our free basic in-home water test checks hardness, iron, chlorine, pH, alkalinity, and total dissolved solids, with nitrate testing for private wells. It does not measure PFAS or certify that water is safe to drink.
Can A.J. Alberts arrange a PFAS test?
A.J. Alberts offers separate paid laboratory PFAS testing for municipal-water and private-well customers. We collect and submit the sample and explain the report. Confirm the test scope, price, and turnaround when scheduling; PFAS is not included in the free basic water test.
Sources and Further Reading
Guidance reviewed September 17, 2026. Product performance must be checked for the exact system selected.
Discuss Your Water and Treatment Options
Start with a free basic water test, or ask specifically about separate paid PFAS testing.