Best Water Softener for Topeka, KS — 17 Things to Know BEFORE You Buy!

Written by Craig "The Water Guy" Phillips

1. The Local Water Problem in Topeka, KS

In Topeka, Kansas, your water heater is fighting a losing battle against 18.5 grains per gallon of calcium and magnesium. That's not just hard water — that's extremely hard water that transforms your home's plumbing into a mineral deposit factory operating 24 hours a day.

To understand what 18.5 GPG means for your Topeka home, think of your plumbing system like a construction site. Each gallon flowing through your pipes carries 18.5 grains of limestone-like minerals — roughly equivalent to a pinch of sand per gallon. Over months and years, those microscopic particles accumulate into concrete-hard scale deposits that choke pipes, destroy appliances, and cost Topeka homeowners thousands in premature replacements.

Topeka's water originates primarily from the Kansas River and groundwater wells throughout Shawnee County. As this water travels through limestone-rich geological formations — common throughout eastern Kansas — it dissolves calcium carbonate and magnesium sulfate, creating the mineral-heavy supply that reaches your tap.

At 18.5 GPG, Topeka's water falls into the "extremely hard" classification, the highest category on the hardness scale. This level puts your home's infrastructure under constant mineral assault, accelerating wear on everything from coffee makers to washing machines to the main water heater that serves your entire household.

The financial stakes are real for Topeka families. Extremely hard water at this level can reduce water heater efficiency by 30-40% within just 18 months. Your dishwasher's heating elements become coated with scale deposits that force the unit to work harder and fail sooner. Even your skin and hair feel the daily impact as mineral-heavy water strips natural oils and leaves a film that soap cannot penetrate.

Every day your Topeka home operates without water treatment, 18.5 GPG continues building scale deposits that compound into bigger problems. The question isn't whether hard water will damage your appliances — it's how much damage you're willing to accept before taking action.

2. What 18.5 GPG Does to Your Home

At 18.5 grains per gallon, calcium carbonate forms a concrete-like coating on your water heater's heating elements within months of installation. This isn't gradual wear — it's aggressive mineral accumulation that creates an insulating barrier between the heating element and water, forcing your system to work exponentially harder to achieve the same temperature.

The engineering reality is stark: every heating cycle deposits more calcium and magnesium onto metal surfaces. At Topeka's 18.5 GPG level, a standard 40-gallon electric water heater loses approximately 8-12% efficiency every six months. By year two, energy consumption increases by 35-40% while hot water output decreases noticeably during peak usage periods.

Inside your home's copper and steel pipes, mineral deposits create concentric rings that narrow water flow like arterial blockage. At 18.5 GPG, this process accelerates dramatically compared to moderately hard water cities. Galvanized steel pipes — common in older Topeka neighborhoods built before 1980 — see measurable diameter reduction within 3-4 years. The mineral buildup doesn't just restrict flow; it creates rough interior surfaces where bacteria can colonize and additional deposits accumulate faster.

Your major appliances face a harsh reality in Topeka's mineral-heavy water environment. Dishwashers typically last 7-9 years nationally, but at 18.5 GPG, expect 4-5 years before wash arms clog permanently and heating elements fail. Washing machines suffer similar accelerated wear as mineral deposits coat internal components and reduce cleaning effectiveness.

The soap and detergent waste in Topeka homes is mathematically predictable at 18.5 GPG. Calcium and magnesium ions chemically bind with soap molecules, forming insoluble precipitate instead of cleaning lather. This reaction requires 3-4 times more soap, shampoo, and laundry detergent to achieve basic cleaning results. For a typical four-person Topeka household, this translates to approximately $400-600 annually in extra soap and detergent costs.

Your skin and hair experience daily irritation from 18.5 GPG mineral content. Calcium ions strip natural moisture from skin while magnesium leaves an invisible film that prevents proper rinsing. Hair becomes dull and brittle as mineral deposits coat each strand, making styling products less effective and requiring more frequent washing with stronger shampoos that further damage already mineral-stressed hair.

Laundry emerges from Topeka's hard water feeling stiff and looking dingy regardless of detergent quality. White fabrics develop a grey cast as calcium deposits embed in fabric fibers. Colored clothing fades faster because minerals interfere with proper detergent action during wash cycles. This isn't cosmetic damage — it's permanent fabric degradation that shortens clothing lifespan significantly.

The cumulative annual "hard water tax" for a typical Topeka household at 18.5 GPG reaches approximately $2,200-2,800 when factoring energy waste, soap overuse, appliance depreciation, and premature replacement costs. This figure doesn't include major repairs like water heater replacement or pipe descaling services that become inevitable under constant mineral assault.

3. Topeka's Specific Contaminant Profile

Beyond the challenging 18.5 GPG hardness baseline, Topeka residents also contend with chlorine and sediment — each of which compounds the mineral problem in distinct ways. Understanding how these contaminants interact with extremely hard water helps explain why a comprehensive treatment approach is essential for protecting your home's infrastructure.

Chlorine in Topeka's Water Supply

The City of Topeka adds chlorine as a disinfectant to eliminate bacteria and viruses as water travels from treatment plants to your neighborhood. This chlorine enters the system during the final treatment stage and maintains approximately 0.5-1.5 mg/L residual concentration by the time it reaches residential taps throughout Shawnee County.

At 18.5 GPG hardness, chlorine creates additional complications beyond the typical taste and odor complaints. Chlorine accelerates the corrosion of rubber gaskets, O-rings, and seals throughout your plumbing system. When combined with calcium-heavy water, this corrosion happens faster as mineral deposits create rough surfaces where chlorine concentrates and attacks metal components more aggressively.

Topeka residents typically notice chlorine through a swimming pool-like odor, especially in morning showers when water has sat in pipes overnight. The taste becomes more pronounced during summer months when the city increases chlorination to combat higher bacterial loads in warmer Kansas River water. Some residents report a medicinal or bleach-like aftertaste that's strongest from kitchen faucets used for drinking water.

The EPA's maximum residual disinfectant level for chlorine is 4.0 mg/L, and Topeka's levels remain well within this safety threshold. However, the combination of chlorine and 18.5 GPG minerals accelerates scale formation in water heaters and creates more persistent soap scum on bathroom fixtures. The SoftPro Elite HE water softener addresses the hardness minerals but does not remove chlorine — Topeka homeowners concerned about taste and odor should consider adding an activated carbon whole-house filter downstream of the softener for comprehensive treatment.

Sediment in Topeka's Distribution System

Sediment in Topeka's water consists primarily of fine particulate matter from aging distribution pipes, periodic main breaks, and seasonal disturbances in the Kansas River supply. This sediment appears as tiny suspended particles that make water look cloudy or leave gritty deposits in glasses and ice cube trays.

At 18.5 GPG hardness levels, sediment creates compounded problems for water treatment equipment. The particles provide nucleation sites where calcium and magnesium can crystallize more rapidly, accelerating scale formation. Additionally, sediment clogs and damages water softener resin beds over time, reducing the system's ability to exchange hardness ions effectively.

Topeka residents typically notice sediment as cloudiness in cold water that clears after sitting for several minutes, or as fine particles visible in ice cubes made from untreated tap water. The problem becomes more noticeable after water main work in your neighborhood or during spring storms that increase turbidity in the Kansas River source water.

The EPA's secondary maximum contaminant level for turbidity is 4.0 NTU (nephelometric turbidity units), and Topeka's treated water typically measures well below this threshold. However, even low levels of sediment can impact water softener performance at 18.5 GPG mineral concentrations. The SoftPro Elite HE includes a self-cleaning sediment pre-filter specifically designed to capture particulate matter before it reaches the resin tank, protecting system longevity in cities like Topeka where both sediment and extreme hardness are present.

4. Why Most Topeka Homeowners Pick the Wrong Softener

After fifteen years covering water treatment failures across Kansas, I've seen the same four mistakes destroy Topeka homeowners' confidence in softening systems. These aren't minor oversights — they're fundamental errors that turn a necessary investment into an expensive disappointment.

The first mistake is buying based on price alone without calculating grain capacity needs at 18.5 GPG. A $400 compact softener that works adequately in Lawrence's 8 GPG water will fail catastrophically in Topeka's mineral-heavy environment. At 18.5 GPG, resin exhaustion happens 2-3 times faster than manufacturers' generic calculations suggest. That undersized unit will regenerate every 2-3 days, wasting salt and water while delivering inconsistent soft water during peak usage periods.

Mistake number two involves confusing water softeners with comprehensive filtration systems. Softeners use ion exchange resin to remove calcium and magnesium — period. They do not reliably remove chlorine or capture sediment long-term. Topeka residents dealing with 18.5 GPG hardness plus chlorine taste and sediment particles need a staged approach: sediment pre-filtration, ion exchange softening, and carbon post-filtration for complete treatment. Expecting one device to solve multiple water quality issues leads to disappointment and improper system sizing.

The third mistake is ignoring the mathematical reality of grain capacity calculations at extreme hardness levels. Here's the formula every Topeka homeowner should understand: [Number of people] × 75 gallons per person per day × 18.5 GPG = daily grain demand. For a four-person household, that's 4 × 75 × 18.5 = 5,550 grains consumed daily. Multiply by seven days, add a 20% buffer for high-usage periods, and you need approximately 46,600 grains of weekly capacity minimum. Anything smaller will regenerate constantly or deliver hard water breakthrough during busy mornings and evenings.

The fourth critical error is overlooking salt efficiency ratings when comparing systems. At 18.5 GPG, your softener will regenerate 50-75 times annually — far more than systems operating in moderately hard water cities. An inefficient unit that uses 18-20 pounds of salt per regeneration versus a high-efficiency model using 8-10 pounds creates a massive cost difference over ten years. In Topeka's demanding water conditions, salt efficiency isn't a nice-to-have feature — it's essential economics that determines whether your system pays for itself or becomes a recurring financial burden.

What to Do Next

Before shopping for any water treatment system, test your home's specific hardness and flow rate. Purchase a reliable hardness test kit and confirm your water measures close to the city's reported 18.5 GPG. Test multiple taps and note any variations. Measure your home's peak water flow rate during busy morning periods when multiple fixtures operate simultaneously — this data determines minimum softener flow capacity requirements.

Schedule a plumbing assessment if your home was built before 1990. Older Topeka homes with galvanized steel pipes may already have significant mineral buildup that affects water pressure and softener sizing calculations. A licensed plumber can evaluate pipe condition and recommend whether descaling or replacement should happen before or after softener installation.

5. The SoftPro Elite HE: Built for Topeka's Water

After evaluating Topeka's water hardness of 18.5 GPG and the presence of chlorine and sediment in the local supply, one system consistently rises to the top for Topeka homeowners: the SoftPro Elite HE Water Softener. This isn't marketing preference — it's engineering necessity when dealing with extremely hard water that demands industrial-grade ion exchange performance in a residential package.

The foundation of the SoftPro Elite HE's superiority in Topeka conditions starts with its salt-based ion exchange technology. Salt-free "conditioner" systems that claim to treat hard water do not actually remove calcium and magnesium — they only attempt to change crystal structure through templates or electromagnetic fields. At 18.5 GPG, these alternative systems cannot prevent scale formation or deliver genuinely soft water. The SoftPro uses proven cation exchange resin that physically captures calcium and magnesium ions while releasing sodium ions in return — the only method that produces measurably soft water at extreme hardness levels.

Demand-initiated regeneration (DIR) becomes operationally critical rather than merely convenient when dealing with Topeka's mineral-heavy water. At 18.5 GPG, resin beds exhaust unpredictably based on actual household usage patterns rather than simple time intervals. DIR technology monitors real resin capacity and regenerates only when the bed approaches exhaustion — preventing hard water breakthrough during peak usage while avoiding wasteful over-regeneration during low-demand periods. For Topeka households where resin capacity matters daily, this intelligent regeneration saves both salt and water while ensuring consistent soft water delivery.

The NSF/ANSI Standard 44 certification of the SoftPro's resin bed provides essential quality assurance for Topeka residents already managing chlorine and sediment challenges. This certification verifies that the ion exchange process itself doesn't introduce contaminants while removing hardness minerals. When your water already contains multiple treatment challenges, knowing the softening process maintains water safety becomes critically important rather than assumed.

Grain capacity options ranging from 32,000 to 80,000 grains allow proper sizing for Topeka's demanding conditions. Using our earlier calculation for a four-person household at 18.5 GPG, the recommended 64,000-grain capacity provides optimal regeneration frequency of every 5-7 days. This sizing prevents both under-capacity problems (daily regeneration, salt waste) and over-capacity issues (excessive upfront cost, oversized footprint). The 48,000-grain model works for smaller households, while the 80,000-grain unit suits larger families or homes with high water usage.

The ten-year warranty coverage becomes essential protection when resin beds face the heavy daily mineral load that 18.5 GPG water delivers. While softener resin typically lasts 10-15 years in moderately hard water cities, extremely hard water accelerates wear through sheer volume of ion exchange cycles. SoftPro's warranty provides Topeka homeowners with confidence during the years of highest hardness stress on internal components.

The system's self-cleaning sediment pre-filter directly addresses Topeka's particulate challenges without requiring separate equipment purchases. This integrated pre-filtration captures sediment before it reaches the resin tank, protecting the expensive ion exchange media from premature fouling. In a city where both 18.5 GPG hardness and sediment are documented concerns, this feature prevents the accelerated resin degradation that shortens system lifespan and increases maintenance costs.

Flow rate capacity of 12-15 gallons per minute ensures the SoftPro Elite HE meets peak demand periods in typical Topeka homes without pressure drops or hard water bypass. At 18.5 GPG, maintaining consistent soft water delivery during morning shower and laundry periods requires adequate flow capacity — insufficient flow forces the system to bypass hard water during high-demand moments.

For Topeka households dealing with 18.5 GPG of water hardness and the compounding presence of chlorine and sediment, the SoftPro Elite HE is not a comfort upgrade — it is infrastructure protection for your home. The combination of proven ion exchange technology, intelligent regeneration, appropriate capacity options, and integrated pre-filtration creates a comprehensive solution designed for exactly the water conditions that challenge Topeka homeowners daily.

6. How to Size Your Softener for Topeka

Proper sizing for Topeka's 18.5 GPG water requires precise calculations that account for extreme mineral content and realistic usage patterns. Guessing or using generic manufacturer recommendations will result in either an undersized system that regenerates constantly or an oversized system that wastes money and space.

Follow this step-by-step sizing formula specifically calibrated for Topeka conditions:

Step 1: Count actual household members, including children who shower daily

Step 2: Multiply by 75 gallons per person per day (standard residential usage)

Step 3: Multiply household gallons × 18.5 GPG = daily grain demand

Step 4: Multiply daily demand × 7 days = weekly grain consumption

Step 5: Add 20% buffer for high-usage days and guests = target capacity

Step 6: Match result to SoftPro Elite HE grain tier (32K / 48K / 64K / 80K)

Here's the calculation worked out for a four-person Topeka household at 18.5 GPG: 4 people × 75 gallons × 18.5 GPG = 5,550 grains daily. Weekly consumption: 5,550 × 7 = 38,850 grains. Adding 20% buffer: 38,850 × 1.2 = 46,620 grains weekly capacity needed.

This calculation points to the 64,000-grain SoftPro Elite HE model, which provides optimal regeneration every 5-7 days at Topeka's extreme hardness level. The 48,000-grain model would regenerate every 4-5 days (acceptable but less efficient), while the 32,000-grain unit would regenerate every 3-4 days (workable for smaller households but approaching the threshold of excessive cycling).

Regenerating every 5-7 days optimizes salt efficiency, water usage, and resin longevity while ensuring consistent soft water delivery during peak household demand periods. More frequent regeneration wastes salt and water; less frequent regeneration risks hard water breakthrough during busy mornings when multiple family members shower simultaneously.

Homeowner Checklist

Before purchasing any softener system in Topeka, complete these essential preparation steps:

✓ Confirm your home's hardness matches city data — test multiple taps

✓ Measure available space near main water line for system installation

✓ Locate electrical outlet within 10 feet of planned installation site

✓ Identify drain access for regeneration discharge (floor drain, utility sink, or standpipe)

✓ Check local permit requirements through Shawnee County building department

✓ Schedule plumbing evaluation if your home predates 1990

✓ Calculate monthly salt storage needs based on your sized system

7. Installation in Topeka: What to Know

Topeka does not require licensed plumber installation for residential water softeners, but the city recommends professional installation to ensure proper connection to municipal water systems. DIY installation is legally permitted provided you follow Kansas plumbing codes and obtain any required permits through Shawnee County.

System placement follows standard configuration: install after the main water shutoff valve but before the water heater to treat all household water while maintaining emergency shutoff capability. The softener should connect to the main water line in your basement, utility room, or garage where temperatures remain above freezing year-round. Avoid crawl spaces or unheated areas during Kansas winters when temperatures regularly drop below 20°F.

Drain line requirements are straightforward but essential for proper regeneration cycles. The SoftPro Elite HE needs a gravity drain within 20 feet of the installation site for brine discharge during regeneration. Acceptable drain options include floor drains, utility sinks, sump pump basins, or dedicated standpipes that connect to your home's waste system. Avoid draining directly into septic systems if your Topeka home uses on-site sewage treatment.

Topeka's municipal water pressure typically ranges between 45-65 PSI throughout most residential neighborhoods, which suits the SoftPro Elite HE's operating requirements perfectly. The system operates optimally between 25-80 PSI, so no pressure modifications are necessary for standard city water service. Homes with private wells or booster pumps should verify pressure compatibility before installation.

Salt type selection becomes crucial at 18.5 GPG consumption rates. Use only evaporated salt pellets in Topeka's extreme hardness conditions — never rock salt or solar crystals. Evaporated pellets contain 99.6% pure sodium chloride with minimal impurities that would otherwise accumulate in the brine tank and clog regeneration components. At 18.5 GPG, your system will consume 15-25 pounds of salt monthly, making purity essential for long-term reliability.

Check salt levels every 3-4 weeks during normal operation, more frequently during high-usage periods like holidays when guests increase household water consumption. Maintain salt level at least 6 inches above the water line in the brine tank to prevent salt bridging — a crusty formation that blocks proper regeneration.

8. Maintenance Schedule for Topeka Homeowners

At 18.5 GPG, your water softener works harder than systems in moderately hard water cities, requiring a proactive maintenance schedule to ensure reliable operation and maximum lifespan. This isn't optional upkeep — it's essential protection for your investment in Topeka's demanding water conditions.

Monthly maintenance tasks focus on salt management and basic system monitoring. Check salt levels in the brine tank and add evaporated pellets when the level drops to within 6 inches of the water line. Inspect for salt bridges by gently probing the salt surface with a broom handle — if you feel a hard crust, break it up to restore proper brine formation. Verify the bypass valve remains in the "service" position and hasn't been accidentally switched during other household maintenance.

Every three months, perform more thorough system checks calibrated to Topeka's high mineral consumption rate. Clean the brine tank by removing undissolved salt residue and wiping down interior surfaces with a diluted bleach solution. Test your home's post-softener water hardness using test strips — readings should consistently measure below 1 GPG throughout your house. Clean the integrated sediment pre-filter according to manufacturer instructions to maintain proper flow and protect the resin bed from Topeka's particulate challenges.

Annual maintenance becomes critical for longevity at 18.5 GPG mineral loading. Perform complete brine tank cleaning by emptying, scrubbing, and refilling the tank. Conduct a comprehensive resin bed performance evaluation — if post-softener hardness readings creep above 1 GPG consistently, the resin may need cleaning with specialized resin cleaner or replacement. Audit regeneration cycle timing and salt dosing to confirm optimal efficiency for your household's actual usage patterns.

Every five years, assess resin replacement needs based on performance rather than arbitrary timelines. At 18.5 GPG, resin beds typically require replacement every 8-12 years compared to 12-15 years in moderately hard water cities. Warning signs include persistent post-treatment hardness above 1 GPG, increased salt consumption without corresponding usage increases, or visible resin particles in treated water.

Topeka residents should establish baseline measurements immediately after installation and retest quarterly to track system performance over time. Order home water test kits annually to confirm both hardness removal and overall water quality — this data helps identify maintenance needs before they become expensive problems.

9. Frequently Asked Questions for Topeka Residents

10. Is Topeka's water at 18.5 GPG dangerous to drink?

Topeka's 18.5 GPG hardness level is not dangerous for human consumption — calcium and magnesium are essential minerals that many people obtain through dietary supplements. The EPA does not regulate hardness as a health contaminant because hard water poses no direct health risks to most individuals. However, the extreme mineral content creates significant infrastructure and comfort problems that justify treatment for practical rather than health reasons.

11. Will a water softener remove chlorine and sediment from Topeka's water?

The SoftPro Elite HE removes calcium and magnesium (hardness minerals) but does not remove chlorine from Topeka's treated water supply. The integrated sediment pre-filter captures particulate matter effectively, but chlorine requires activated carbon filtration for removal. Topeka homeowners concerned about chlorine taste and odor should consider adding a whole-house carbon filter downstream of the softener for comprehensive treatment of both hardness and disinfection byproducts.

12. How much salt will I use per month in Topeka at 18.5 GPG?

A properly sized SoftPro Elite HE system serving a four-person Topeka household will consume approximately 20-30 pounds of salt monthly at 18.5 GPG hardness levels. This calculation assumes normal water usage and efficient regeneration cycles every 5-7 days. Larger households, guests, or high water usage periods will increase consumption proportionally. Always use evaporated salt pellets for optimal system performance and longevity.

13. Does Topeka require a permit to install a water softener?

The City of Topeka does not require specific permits for residential water softener installation, but Shawnee County building codes may apply if significant plumbing modifications are necessary. Most installations qualify as routine appliance connections that don't require permits. However, contact Shawnee County's building department at (785) 251-5900 to confirm requirements for your specific installation circumstances, especially if you're adding new water lines or electrical connections.

14. Why does soft water feel slippery in the shower?

Soft water feels slippery because your skin is actually cleaner — you're feeling your natural skin oils without the mineral film that 18.5 GPG hard water normally deposits. In Topeka's untreated water, calcium and magnesium ions prevent complete soap rinsing and leave an invisible mineral coating that creates artificial "grip." Soft water allows thorough rinsing, revealing your skin's natural smoothness. This sensation is temporary as your skin adjusts to proper cleansing within 1-2 weeks.

15. How quickly will I see results after installing a softener in Topeka?

At 18.5 GPG hardness levels, Topeka homeowners notice immediate improvements in soap lathering and reduced spotting on dishes and glassware within the first week of operation. Skin and hair improvements typically appear within 2-3 weeks as existing mineral buildup washes away. Existing scale deposits in water heaters and appliances will not dissolve automatically — energy efficiency improvements develop gradually over 3-6 months as new soft water prevents additional scale formation.

16. Can the SoftPro Elite HE handle Topeka's water without a separate filter?

The SoftPro Elite HE effectively handles Topeka's 18.5 GPG hardness and sediment challenges through its ion exchange system and integrated pre-filter. Chlorine removal is not included, so homeowners concerned about taste, odor, or chlorine exposure should add activated carbon filtration. For comprehensive treatment of all documented Topeka water issues, the ideal setup combines the SoftPro Elite HE with a whole-house carbon filter for complete hardness and chlorine management.

Recommended Setup for Topeka

Based on Topeka's specific water profile, the optimal treatment train consists of:

1. SoftPro Elite HE 64K-grain softener (main hardness removal)

2. Whole-house activated carbon filter (chlorine taste/odor removal)

3. Annual sediment pre-filter replacement (maintain system protection)

This configuration addresses all documented Topeka water challenges while maximizing equipment longevity and performance. Total investment ranges from $2,500-3,500 installed, paying for itself within 18-24 months through energy savings and reduced soap/appliance costs at 18.5 GPG hardness levels.

17. Final Verdict for Topeka

Topeka's water hardness of 18.5 GPG demands industrial-grade treatment in a residential package — there is no middle ground when dealing with extremely hard water that destroys appliances and wastes thousands of dollars annually. The documented presence of chlorine and sediment compounds the mineral problem in ways that require comprehensive rather than partial solutions.

The SoftPro Elite HE rises above other residential softeners because its demand-initiated regeneration prevents hard water breakthrough during Topeka's peak usage periods, its certified resin handles extreme daily mineral loading, and its integrated pre-filtration protects against sediment damage that accelerates system wear at 18.5 GPG levels.

For Topeka households, water softening is not a luxury upgrade — it's essential infrastructure protection that prevents thousands in premature appliance replacement and energy waste. The mathematics are clear: 18.5 GPG hardness costs the average household $2,200-2,800 annually in direct and indirect expenses. A properly sized SoftPro Elite HE system eliminates these costs while protecting your home's plumbing infrastructure and improving daily quality of life.

Check current SoftPro Elite HE pricing and available grain capacities for Topeka households dealing with Kansas's most challenging residential water conditions. Like the historic Statehouse that has withstood Kansas weather for over a century, your home's plumbing deserves protection built to handle whatever challenges flow through Topeka's mineral-rich water supply.