Water Filtration Systems
Everything about filtration systems: reverse osmosis, water softeners, whole house, point of use, maintenance, and comparisons.
Visit Blog
Featured
Top Articles
Reverse OsmosisHow Much Does a Reverse Osmosis System Cost? (2026 Pricing Guide)
A homeowner's guide to reverse osmosis system costs: countertop through whole-house pricing, installation, filter replacements, and long-term value.
Read articleAlso Popular
Reverse Osmosis Maintenance: The Complete Owner's Guide
Water Filter Maintenance
Easy RO Maintenance: 5 Minutes a Month (Quick Guide)
Water Filter Maintenance
How Do Water Softeners Work? Ion Exchange Explained
Water Softeners and Salt-Free Conditioners
Do You Need a Water Softener? 8 Signs of Hard Water
Water Softeners and Salt-Free ConditionersSubcategory
77 articles
Water Softeners and Salt-Free ConditionersWater Softener Settings: Hardness, Reserve and Timing
What to set your water softener to: hardness in grains per gallon plus iron, days between regenerations or reserve, regeneration time and outage checks.
Water Filter MaintenanceWater Softener Making Noise? What Each Sound Means
Which water softener sounds are normal regeneration and which point to a problem: nonstop drain flow, a cycling motor, grinding, or salt that never drops.
Water Filter MaintenanceWhole House Water Filter Maintenance for Tank Systems
What a backwashing whole house tank filter needs: power, drain and clock checks, pre-filter changes, media life by tank size and a yearly checklist.
Point of Use Water SystemsHow to Install an Under-Sink Water Filter, Step by Step
Faucet spot, T-valve or saddle valve, pressure limits, tubing, leak check and flush: what an under-sink cartridge filter install involves, plus the warranty.
Reverse OsmosisWhat Size Whole House RO System Do You Need?
Size a whole house RO system from your daily use, a safety margin, your winter water temperature and your morning rush. Two worked examples show the math.
Water Softeners and Salt-Free ConditionersAre Water Softeners Banned Where You Live? How to Check
Some sewer agencies restrict salt softeners that send brine down the drain. How to check your area, what the rules cover, and what to use instead.
Water Softeners and Salt-Free ConditionersWater Softener Rental vs Buying: Run the Numbers
Renting a water softener looks cheap monthly. Here is the break-even math to run on your own quote, plus what the fee covers when the valve or resin fails.
Water Softeners and Salt-Free ConditionersTankless Water Heater Scale Prevention: 3 Options
Softener, salt-free conditioner or flushing? Match tankless water heater scale prevention to your hardness number, your manual and what the testing shows.
Water Softeners and Salt-Free ConditionersWater Softener Loop: Which Lines Get Soft Water?
What a water softener loop is, which lines to soften (hot only, whole house, kitchen cold tap, hose bibs) and your options if your house has no loop.
Water Filter ComparisonsTap Water vs Filtered Water: What Really Changes
Filtered water isn't automatically better than tap. See what a home filter changes, what you give up, what it can't fix, and how to decide for your house.
Reverse OsmosisConnect a Reverse Osmosis System to a Refrigerator
Connecting RO to your fridge or ice maker comes down to pressure. What to measure, what to do with the fridge filter, the parts, and low-pressure fixes.
Water Filter ComparisonsUpflow vs Downflow Whole-House Water Filters
Compare upflow vs downflow whole-house water filters, including service direction, backwashing, benefits, tradeoffs, and best uses.
Reverse OsmosisWhole House Reverse Osmosis: Pros, Cons, and Who Needs One
Whole house reverse osmosis pros and cons from a manufacturer: what it does well, the real drawbacks, and the test for whether your home actually needs one.
Water Filter MaintenanceRO System Low Pressure: 8 Causes & Fixes (2026)
RO system low pressure or slow water flow? Diagnose the 8 most common causes and fix each one yourself, with step-by-step help from Crystal Quest.
Water Softeners and Salt-Free ConditionersWhy Does Soft Water Feel Slippery?
Soft water feels slippery because ion exchange removes the calcium that turned soap into scum, so soap finally rinses clean. Here's why it's normal.
Water Filter MaintenanceReverse Osmosis Noise: 6 Sounds and How to Fix Them
Hear humming, gurgling, or vibrating from your RO system? Learn what 6 common reverse osmosis noises mean and how to fix each one.
Water Softeners and Salt-Free ConditionersHow Much Does a Water Softener Cost? 2026 Prices
See what a water softener really costs in 2026: the system, installation, salt, and the 10-year total cost of ownership, plus how to size yours right.
Water Filter MaintenanceHow Long Do Water Pitcher Filters Last?
Basic pitcher cartridges last about 2 months. Crystal Quest 5-stage pitcher cartridges run 6 to 12 months.
Water Filter MaintenanceHow to Change a Whole House Water Filter Cartridge
A step-by-step guide to changing your whole house water filter cartridges: shut off, swap in the right order, seal the O-ring, and flush without a leak.
Water Filter MaintenanceUV Water Filter Lamp Replacement and Maintenance
How to replace a UV water filter lamp, clean the quartz sleeve, and keep your system disinfecting. A step-by-step maintenance guide from Crystal Quest.
Water Filter ComparisonsWater Softener vs Water Filter: Which Do You Need?
Water softener vs water filter: they solve different problems. Learn which one your home needs, when you need both, and how to decide fast.
Reverse OsmosispH of Reverse Osmosis Water: Why It's Acidic
Reverse osmosis water is mildly acidic, usually pH 5 to 7. Here is why that happens, whether it is safe to drink, and when to raise the pH.
Water Filter ComparisonsWhat Is Artesian Water? Source, Myths, and Facts
Artesian water comes from a pressurized underground aquifer, not a purity guarantee. See how it compares to spring, mineral, and purified water.
Reverse OsmosisReverse Osmosis Waste Water: The Real Drain Ratio
Reverse osmosis waste water explained: the real drain ratio, why modern systems recover far more, and practical ways to cut RO waste.
Water Filter ComparisonsTypes of Water Explained: Spring, Mineral, Purified & More
Spring, artesian, mineral, purified, distilled, RO, alkaline: what each type of water is, how the FDA defines them, and which is best to drink.
Water Softeners and Salt-Free ConditionersWater Softeners & Septic Tanks: What Research Says
Are water softeners bad for septic systems? Independent research says no, and an efficient softener may even help your drain field.
Water Softeners and Salt-Free ConditionersWater Softener Control Valves: Clack vs Fleck
Compare Clack, Fleck, and Autotrol water softener control valves: specs, sizing, regeneration modes, and which valve fits your home or facility.
Water Softeners and Salt-Free ConditionersBest Water Softener Systems for Your Home (2026)
A manufacturer's guide to choosing the best water softener system for your home: salt-based vs salt-free, sizing it right, and matching one to your water.
Water Softeners and Salt-Free ConditionersWater Softener Bypass Valve: Use, Fix & Add One
Learn how to use your water softener bypass valve for every valve type, plus how to free a stuck or leaking valve and add a bypass to an older system.
Water Filter ComparisonsWell Water vs City Water: Key Differences
Well water vs city water: one is regulated and treated, the other is yours to manage. See the real differences and what each needs to be safe.
Water Softeners and Salt-Free ConditionersIs Softened Water Safe to Drink?
Is softened water safe to drink? See how much sodium a softener adds by hardness level, who should limit it, and easy ways to cut it at the tap.
Reverse OsmosisTankless vs Tank Reverse Osmosis: Which Is Right?
Tankless reverse osmosis filters water on demand; tank systems store it for instant pressure. Compare cost, water waste, space, and power to choose.
Water Filter ComparisonsRO vs UV vs UF: Which Water Treatment Do You Need?
Reverse osmosis, UV, and ultrafiltration solve different water problems. Compare what each removes and match the right technology to your water.
Water Filter MaintenanceHow to Flush a New Water Filter (Break-In Guide)
A new water filter's first water often looks gray or cloudy. Here is how to flush each system type, what is normal during break-in, and when to worry.
Water Filter MaintenanceHow Often to Change Your Water Filter
How often to change your water filter depends on the type, from every 2 months for pitchers to 10 years for whole house media. See the full schedule.
Water Filter MaintenanceWhat Is an Air Gap in Plumbing?
What is an air gap in plumbing? Learn how air gaps protect your dishwasher, reverse osmosis system, and water softener from backflow contamination.
Reverse OsmosisWhat Does Reverse Osmosis Remove? Full Guide
Reverse osmosis removes up to 99% of most dissolved contaminants, from lead and fluoride to PFAS and bacteria. See removal rates and what RO cannot filter.
Water Softeners and Salt-Free ConditionersHow to Install a Water Softener: Step-by-Step Guide
Water softener installation, step by step: where to place the unit, connect the bypass valve and drain, size it right, and start it up. A clear DIY guide.
Water Filter ComparisonsAre Water Filters Worth It? Budget vs Professional Systems
A budget pitcher and a whole-house system solve different problems. See how to match the filter to your water, your home, and your real cost per gallon.
Water Filter MaintenanceHow to Keep Pipes From Freezing: A Homeowner's Guide
Learn how to keep pipes from freezing and protect your water filtration system from costly winter damage. Eight proven steps plus a winterizing checklist.
Reverse OsmosisHow to Remineralize Reverse Osmosis Water (4 Easy Ways)
RO water tastes flat because the minerals are gone. Here are four ways to remineralize reverse osmosis water, and which one is actually worth it.
Water Filter ComparisonsDistilled vs Deionized Water: Key Differences
Distilled vs deionized water: compare how each is made, purity levels, cost, and the best uses so you can pick the right type for your needs.
Water Filter MaintenanceReverse Osmosis Leaking? Fix Every RO Leak
Reverse osmosis leaking under the sink? Learn to find the exact source (housing, fitting, faucet, tank, or drain) and fix every RO leak yourself.
Water Filter MaintenanceReverse Osmosis Water Cloudy? Causes & Fixes
Reverse osmosis water cloudy, milky, or discolored? Usually it's harmless air.
Water Filter ComparisonsFiltered Water vs Purified Water: The Difference
Filtered water reduces specific contaminants; purified water meets a defined low-impurity standard. Here is the real difference and which one your home needs.
Water Filter MaintenanceWater Softener Leaking? Causes and Fixes
Is your water softener leaking? Learn the most common leak sources, from the tank base to the drain line, what you can safely fix, and when to call a pro.
Water Filter MaintenanceWater Filter Troubleshooting: Fix 10 Common Problems
Water filter troubleshooting made simple: fix slow flow, bad taste, leaks, and cloudy water across every system type, most in under 10 minutes.
Water Filter MaintenanceReverse Osmosis Troubleshooting Guide (2026)
Reverse osmosis troubleshooting made simple: fix high TDS, slow flow, leaks, bad taste, and noise with step-by-step diagnosis from a 30-year manufacturer.
Water Filter MaintenanceWater Softener Troubleshooting: Diagnose & Fix Problems
Water softener not working? Troubleshoot salt bridges, regeneration failures, low pressure, and salty water with this step-by-step homeowner guide.
Whole House Water FiltersWhole House PFAS Water Filter: The Complete Guide
Learn how whole house PFAS water filters work, which technologies actually remove forever chemicals, and how to size a point-of-entry system for your home.
Reverse OsmosisWhat Is RO Rejection Rate? (And How to Calculate Yours)
RO rejection rate is the percentage of dissolved contaminants your RO membrane removes. Learn how to calculate yours with a TDS meter and what it means.
Water Filter MaintenanceBest Water Softener Salt: Complete Buying Guide (2026)
Compare evaporated, solar, rock salt & potassium chloride for water softeners. Expert guide with prices, troubleshooting & salt usage charts.
Water Softeners and Salt-Free ConditionersDo Salt-Free Water Softeners Work? 2026 Guide
Salt-free water softeners prevent scale but don't truly soften water. Compare salt-free vs salt-based, costs, and find the right system for your home.
Water Filter ComparisonsDistilled Water vs Reverse Osmosis: Full Comparison (2026)
Distilled water or reverse osmosis? We compare removal rates, cost, taste, and convenience to help you choose the right option for your home.
Reverse OsmosisDoes Reverse Osmosis Remove Microplastics & PFAS?
Yes, reverse osmosis removes up to 99% of microplastics and PFAS from drinking water. Learn how RO works and which system fits your home.
Reverse OsmosisHow to Install & Wire Float Switches to a Whole House RO System
Learn how to install high and low float switches on a whole house reverse osmosis system. Step-by-step wiring guide for RO and booster pump protection.
Water Softeners and Salt-Free ConditionersNanofiltration for Water Softening: How It Works
Nanofiltration softens water by membrane, not salt. See how it works, how it compares to RO and ion exchange, and when it's the right pick.
Reverse OsmosisHow Much Does a Reverse Osmosis System Cost? (2026 Pricing Guide)
A homeowner's guide to reverse osmosis system costs: countertop through whole-house pricing, installation, filter replacements, and long-term value.
Reverse OsmosisWhat Impacts the Cost of a Whole House RO System in 2026?
Learn what influences the cost of a whole house reverse osmosis system, including water quality, system size, water use, installation cost, add-ons, and more.
Water Filter MaintenanceUnder-Sink Reverse Osmosis Maintenance: DIY Care Guide
Under-sink and countertop RO maintenance: filter changes, tank sanitization, and troubleshooting from the engineers who build the systems.
Water Filter MaintenanceReverse Osmosis Maintenance: The Complete Owner's Guide
Reverse osmosis maintenance, made simple. Step-by-step filter changes, sanitization, and membrane care for POU and whole house RO systems.
Water Filter MaintenanceWhole House RO Maintenance: Schedule & Care
Whole house RO maintenance schedule: pre-filter swaps, membrane replacement, sanitizing & cleaning, atmospheric tank care, and booster pump service.
Water Filter MaintenanceEasy RO Maintenance: 5 Minutes a Month (Quick Guide)
Reverse osmosis maintenance simplified: a 5-minute monthly check, an annual sanitize, and filter swaps every 2 to 3 years. Beginner-friendly.
Water Filter MaintenanceHow to Sanitize an RO System & Clean the Storage Tank
Sanitize your RO system the right way. Bleach ratios and step-by-step cleaning for both atmospheric and bladder storage tanks.
Water Filter MaintenanceHow to Clean a Reverse Osmosis Membrane
RO membrane cleaning restores flow and taste without a full replacement. Here's the right chemistry for organic vs inorganic fouling, plus the CIP method.
Water Filter MaintenanceHow to Replace RO Filters: Step-by-Step Maintenance Guide
Reverse osmosis filter replacement is a 30-minute job every 12-24 months. A homeowner's guide to swapping RO pre-filters and post-filters on any system.
Water Filter MaintenanceHow to Replace a Reverse Osmosis Membrane
Step-by-step guide to replacing your RO membrane. Covers lifespan, tools needed, and removal and installation on any residential or commercial system.
Reverse OsmosisCrystal Quest RO Systems: Find Your Perfect Match
Match your water quality and household size to the right Crystal Quest reverse osmosis system. Under-sink, countertop, and whole-house options compared.
Water Softeners and Salt-Free ConditionersHow Do Water Softeners Work? Ion Exchange Explained
Learn how water softeners use ion exchange to remove hard water minerals. Step-by-step process, regeneration, maintenance, and Crystal Quest systems.
Water Filter MaintenanceWater Softener Maintenance & Best Salt Guide
Complete water softener maintenance checklist plus how to choose the best water softener salt. Monthly checks, brine tank cleaning, troubleshooting, and resin care.
Water Filter ComparisonsWater Softener vs Water Conditioner: Full Comparison
Water softeners remove hardness minerals. Conditioners prevent scale without salt.
Water Filter MaintenanceSalt-Free Water Conditioner Maintenance Guide
Complete maintenance guide for Crystal Quest salt-free conditioners. Filter replacement, annual flush, media lifespan, and troubleshooting tips.
Water Softeners and Salt-Free ConditionersDo You Need a Water Softener? 8 Signs of Hard Water
Spotty dishes, dry skin, scale on faucets? These 8 signs mean you have hard water.
Water Filter ComparisonsPOE vs POU Water Filters: Which Do You Need?
POE filters cover every tap. POU filters go deep at one location.
Reverse OsmosisReverse Osmosis Water Filter Systems: The Complete Guide (2026)
Complete guide to reverse osmosis systems: how RO works, contaminant removal rates, system types, sizing, costs, maintenance schedules, and expert buying advice.
Whole House Water FiltersWhole House Water Filtration Systems: POE Guide
Whole house water filters treat every drop at the main line. Learn what POE systems remove, types of filtration, and choosing the right system for your home.
Point of Use Water SystemsPoint-of-Use Water Filters: Types & How to Choose
POU water filters treat water at one tap. Compare under-sink RO, countertop, shower, faucet, and pitcher filters to find the right one for your home.