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PHONE HOTLINE: (615) 266-4806E-MAIL: info@willsfriends.com
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PHONE HOTLINE: (615) 266-4806E-MAIL: info@willsfriends.com
GET CLEAN WATER
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REVERSE OSMOSIS INSTALLATION IN NASHVILLE, FRANKLIN & BRENTWOOD (MIDDLE TN)

If your tap water tastes “swimmy” or metallic, the fix isn’t at the faucet—it’s at the molecule. Reverse osmosis (RO) gives your family crisp, low‑TDS water by pushing water through a high‑selectivity membrane that leaves unwanted stuff behind.

 

RO INSTALLATION & SERVICE
NASHVILLE • FRANKLIN • BRENTWOOD

  • Under‑sink & tankless RO (dedicated faucet + optional fridge line)

  • Filter/membrane replacement on a schedule you don’t have to remember

  • Zip‑code coverage across Williamson & Davidson Counties
    Note: Nashville’s latest CCR shows moderately hard water (~4.0–7.6 gpg historically; 100.5 mg/L avg in 2024)—a great case for RO at the kitchen and softening for the rest of the home.

For the fastest response, call us at (615) 212-8488. For information on pricing, options and other questions, book a free discovery call to see if it is a fit for you!
BOOK YOUR 15-MIN DISCOVERY CALL

WHAT IS REVERSE OSMOSIS—REALLY?

Reverse osmosis is a point‑of‑use (usually under‑sink) system that uses pressure to push water through a semi‑permeable membrane. The “good” stream (permeate) goes to your RO faucet (and fridge line, if plumbed); the “reject” stream (concentrate) carries away dissolved solids. In plain terms: RO is designed to reduce total dissolved solids (TDS) and many dissolved contaminants that ordinary carbon filters don’t reliably handle. US EPA+1

In practice (what you’ll see under your sink): compact pre‑filters, the RO membrane housing, a small storage tank (for tanked models) or a compact tankless unit, and an air‑gap RO faucet with a proper drain connection. US EPA

WHAT IT'S BUILT TO REDUCE:

  • Dissolved salts (TDS) & many metals/inorganics — common examples include lead, copper, chromium, sodium, and arsenic, fluoride, nitrate/nitrite. Always check the model’s performance data sheet to confirm certified reduction claims. CDC+1
  • PFAS (“forever chemicals”) — In April 2024, EPA finalized PFAS drinking‑water standards and identifies reverse osmosis among the Best Available Technologies (BATs) for reducing PFAS. For a home unit, choose a model that is certified for PFAS reduction and keep filters on schedule. US EPA+1
  • Microorganisms — RO membranes can remove parasites, bacteria, and viruses. (Municipal water is already disinfected; on private wells or special cases, we can pair RO with UV.) CDC

  • Microplastics — Membrane processes including reverse osmosis can substantially reduce microplastics in drinking water, according to the WHO; emerging research supports high removal in membrane‑based treatment. Iris+1

Proof standard: Look for NSF/ANSI 58 certification (the RO standard). It verifies core performance like TDS reduction and any specific contaminant claims the manufacturer elects to make.

TOUCH
WHAT DOES RO REMOVE?
WHAT DOES RO REMOVE?Read More
TOUCH
PROS & CONS, HEALTH & TASTE
PROS & CONS, HEALTH & TASTERead More
TOUCH
WHICH RO SYSTEM (UNDER‑SINK, TANKLESS, COUNTERTOP, WHOLE‑HOUSE)?
WHICH RO SYSTEM (UNDER‑SINK, TANKLESS, COUNTERTOP, WHOLE‑HOUSE)?Read More
TOUCH
COST, INSTALLATION & SERVICE (MIDDLE TN)
COST, INSTALLATION & SERVICE (MIDDLE TN)Read More

WHY NASHVILLE-AREA FAMILIES CHOOSE RO
(BENEFITS YOU CAN FEEL)

  • Taste & odor you’ll notice: RO lowers TDS and, with its built‑in carbon stages, improves chlorine/chloramine taste and odor so coffee, tea, and cooking taste clean. CDC
  • Consistent, low‑TDS water: Great for ice clarity, kettles, and espresso. WaterSense performance criteria require a baseline TDS reduction ≥75% for labeled systems. US EPA
  • PFAS peace of mind: RO is on EPA’s short list of effective home treatments for PFAS; just pick a unit with certified PFAS reduction and keep up with filter changes. US EPA
  • Less plastic waste: With RO at the tap, many families cut bottled‑water purchases dramatically (and avoid micro‑/nanoplastics found in some bottled waters). Iris

CLEAN, GREAT‑TASTING WATER—INSTALLED NEAR YOU

Nashville • Franklin • Brentwood • Williamson & Davidson Counties
FREE ZIP CODE WATER REPORT
BOOK A 15‑MIN DISCOVERY CALL
INTRODUCTION

WHAT RO DOESN'T DO
(AND HOW WE HANDLE IT)

  • Chlorine can damage RO membranes if not removed first—so quality systems include a carbon pre‑filter ahead of the membrane. (Thin‑film composite membranes tolerate <0.1 mg/L free chlorine.) DuPont

  • Hardness/scale in your whole home: RO is for a drinking line; for scale on glass, fixtures, or tankless heaters you pair filtration with a softener or conditioner. (We’ll configure both if needed.)

  • pH & minerals: RO lowers dissolved mineral content; low‑mineral water can read slightly acidic as it absorbs a little CO₂ from air (think rainwater ~pH 5.6 in equilibrium with the atmosphere). This isn’t a health standard issue; EPA treats pH as a secondary (aesthetic) standard with a typical range of 6.5–8.5. Many homeowners add a remineralization stage for taste. U.S. Geological Survey+1

KEEP IT SIMPLE

HERE ARE YOUR OPTIONS

UNDER‑SINK RO (MOST COMMON):

  • Clean drinking water at a dedicated faucet (and fridge if you want).

  • Tanked or tankless designs; our installs include the air‑gap faucet & proper drain connection.

  • WaterSense‑labeled POU RO systems are certified to NSF/ANSI 58 and must disclose efficiency; labeled models meet ≥30% efficiency (≤2.3:1 waste‑to‑treated ratio) and ≥75% TDS reduction, with membrane‑life testing. We recommend these when possible. US EPA+1

COUNTERTOP RO:

  • Good for renters/apartments. Set on the counter; no plumbing changes. (Lower flow, more frequent filter changes.)

WHOLE‑HOUSE RO:

  • Niche solution (e.g., high‑TDS well water) requiring storage and repressurization. If you’re here, we’ll design it—but most families don’t need whole‑home RO.

HOW WE CONFIGURE A WILL’S FRIENDS RO (MIDDLE TN)

  • Test & goals: We start with your priorities—taste/odor, PFAS concerns, fluoride preferences, coffee/espresso needs—and your home’s plumbing layout.
  • Media stack: Sediment → carbon (for chlorine/chloramine) → RO membrane → optional remineralization (for taste/pH). Carbon protection is key to membrane life. DuPont
  • Efficiency & performance: We recommend models certified to NSF/ANSI 58; where possible, we spec WaterSense‑labeled systems to reduce water waste without sacrificing performance. US EPA
  • Clean install: Air‑gap faucet, tidy tubing, code‑compliant drain connection, and (if desired) a fridge line.
  • Maintenance plan: Prefilters get replaced per manufacturer schedule; membranes typically last multiple years when protected and maintained. We set reminders and handle the service. US EPA

BOOK YOUR 15-MIN WATER DISCOVERY CALL

NASHVILLE • FRANKLIN • BRENTWOOD • WILLIAMSON & DAVIDSON COUNTIES

We’ll have a quick 15 minute call to go over any questions you have about water filtration and see if we are a fit.
For the fastest install, give us a call at (615) 212-8488.

 
THE TRUTH IN BUYING

PROS & CONS OF
REVERSE OSMOSIS

PROS:

  • Excellent taste & clarity (low TDS) with verified performance standards behind it. US EPA

  • Broad contaminant coverage vs single‑media filters (including PFAS, lead, arsenic, fluoride, nitrate—verify the model’s certified claims). CDC+1

  • Works beautifully alongside whole‑home filtration/softening—RO for drinking; filtration/softening for the rest of the house.

  • Efficiency option: WaterSense‑labeled RO systems are tested for efficiency and performance; EPA estimates >3,100 gallons/year water savings vs typical RO when replacing like‑for‑like. US EPA

 

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TRADE‑OFFS

  • A waste (concentrate) line is required. More efficient models are available (like Will's Friends); EPA's WaterSense proposes a ≥40% recovery floor for labeled RO. US EPA

  • Slightly lower pH/minerals unless you add a remineralization stage (we can add one if you care about taste or want more minerals in your water). U.S. Geological Survey+1

MIDDLE TN

PRICING, INSTALL & WHAT TO EXPECT

  • Transparent quote: Under‑sink and tankless RO options with or without remineralization.

  • Clean install: Air‑gap faucet, tidy tubing, fridge line (if desired), and professional drain connection.

  • Service areas: Nashville • Franklin • Brentwood • Williamson & Davidson Counties.

  • Guarantee: You’ll taste the difference—if not, we’ll make it right.

WANT TO FIND OUT WHAT'S IN YOUR WATER?

Use our free Zip Code Water Quality Report to find out what you are drinking from your local utility provider.
FREE ZIP CODE WATER REPORT

NASHVILLE REVERSE OSMOSIS FREQUENTLY ASKED QUESTIONS

ANSWERS TO YOUR REVERSE OSMOSIS QUESTIONS

Will's Friends has all the answers to your reverse osmosis questions! We understand that many homeowners do not fully understand the benefits of reverse osmosis or how they work. Here are some of our most common questions that may help!
If you have further questions, reach out to us at (615) 212-8488. We offer free consultations in person or over the phone, and we serve Nashville, Brentwood, Franklin, and the rest of Williamson County.
DOES NASHVILLE USE CHLORINE OR CHLORAMINE? Metro Water Services reports chlorine disinfection (often described as “diluted bleach”) in recent CCRs. If you taste or smell chlorine, that’s normal at legal levels—and it’s one reason RO systems include carbon pre‑filters. Nashville.gov+1
WHAT’S THE WATER HARDNESS AROUND HERE? Nashville classifies its water as “moderately hard.” Recent reports show a typical range around 4–7.6 gpg (≈70–130 mg/L as CaCO₃), with 2024 data listing ~100.5 mg/L average. If you’re fighting spots or scale, we pair whole‑home softening with RO at the kitchen. Nashville.gov+1
HOW EFFICIENT ARE MODERN RO SYSTEMS? WaterSense‑labeled POU RO systems are certified to NSF/ANSI 58 and must disclose efficiency; labeled models meet ≥30% efficiency (≤2.3:1 waste‑to‑treated ratio) and ≥75% TDS reduction, with membrane‑life testing. We recommend these when possible and supply them at WILL'S FRIENDS. US EPA+1
DOES RO REMOVE FLUORIDE? Yes—RO is well‑documented to reduce fluoride; verify your unit’s certification and performance data. CDC
WHO SUPPLIES BRENTWOOD & FRANKLIN? Brentwood buys water from Harpeth Valley Utility District (HVUD) and Metro Water Services. Franklin operates its own Water Management Department and treatment plant. We tailor installs to your utility and plumbing layout. brentwoodtn.gov+1
DOES RO REMOVE PFAS? Yes—EPA identifies reverse osmosis among the “Best Available Technologies” to reduce PFAS. Choose a unit certified for PFAS reduction and replace filters on schedule. US EPA+1
WHAT ABOUT LEAD AND ARSENIC? RO reduces many metals, including lead and arsenic, when installed and maintained properly (again—check certified claims). CDC
DOES RO REMOVE BACTERIA AND VIRUSES? RO membranes can remove microorganisms; municipal water is already disinfected, but RO adds a barrier. For private wells or special cases we can pair RO with UV. CDC
WHY DO RO SYSTEMS INCLUDE CARBON FILTERS? Because free chlorine can damage thin‑film RO membranes. Carbon pre‑filters protect the membrane and improve taste. DuPont
IS RO WATER "TOO ACIDIC"? Low‑mineral water can register slightly acidic after CO₂ absorption (think natural rainwater). pH for public water is an aesthetic guideline (EPA secondary standard 6.5–8.5). If you prefer neutral/alkaline taste, we can add an alkaline  remineralization stage. U.S. Geological Survey+1
HOW OFTEN DO FILTERS GET CHANGED?

Follow the manufacturer’s schedule; we enroll you in reminders. Prefilters are typically replaced more often; membranes last multiple years when protected and maintained (NSF/ANSI 58 includes TDS‑reduction performance requirements; EPA WaterSense adds efficiency and membrane life tests for labeled systems). US EPA
DO I NEED TANKED OR TANKLESS RO? Both deliver great water. TANKED stores water for quick pours; TANKLESS produces continuously in a compact footprint. We spec the right option for your space, flow, and local water profile. (Meets NSF/ANSI 58; consider WaterSense‑labeled units for efficiency.) US EPA+1
WHAT IS THE WASTE‑TO‑TREATED RATIO?

WaterSense‑labeled RO systems disclose efficiency and are certified to send ≤2.3 gallons down the drain per 1 gallon treated (≥30% efficiency), while also meeting a ≥75% TDS reduction baseline. US EPA+1
WHY DOES RO FLOW SOMETIMES SLOW DOWN? Clogged prefilters, low pressure, or a membrane near end‑of‑life. Our maintenance plan replaces prefilters on schedule and checks membrane performance (TDS drop). (NSF/ANSI 58 uses TDS reduction as a performance check.)
WHAT DOES NSF/ANSI 58 MEAN FOR MY FAMILY? It’s the RO standard that verifies at least 75% TDS reduction and validates any extra contaminant claims (e.g., lead/arsenic/nitrate/PFAS) shown on the performance data sheet. NSF+1