Discover What a Water Filtration System Filters Out

Hey there, Brian McCowin here from McCowin Water. You know, for over 50 years, since way back in 1972, our family has been helping folks right here in Orange County get truly clean, safe water. We’ve seen it all, from the beautiful coastlines of Newport Beach and Laguna Beach, all the way inland to places like Irvine, Tustin, and Mission Viejo.

And one thing I’ve learned is this: what you can’t see in your water can sometimes be the most important thing.

People often ask me, “Brian, what bad stuff will a water filter take out?” And that’s a great question! But it’s also a bit tricky. See, most folks think if water looks clear, it’s clean. But that’s not always true. Every glass you drink, every shower you take, every load of laundry you wash – it might have hidden things you can’t see or smell.

The real question is: what bad stuff should a water filter take out, and what good stuff should it leave in?

Here at McCowin Water, we’ve tested water in thousands of homes across Orange County – from the sunny shores of Huntington Beach to the quiet neighborhoods of Lake Forest and Aliso Viejo. And the simple truth is: not all “clean” water is safe, and not all minerals are bad for you. Let’s talk about what’s really in your tap water, how it affects your family and your home, and how we use science to make sure your water is just right.

The Big Secret About “Clean” Water

Imagine your water looks perfectly clear. It doesn’t smell funny. And the city says it’s okay. But guess what? It could still have up to 80 different kinds of tiny, hidden things that your body, your pipes, and your washing machine are quietly dealing with every day.

The city does a good job, don’t get me wrong. They make sure the water meets the basic rules. But “basic rules” don’t always mean “best for your health.” It’s like eating just enough to not be hungry, instead of eating healthy food that makes you strong.

And that bottled water you buy? A lot of times, it’s just tap water that’s been filtered a little bit. It’s not always as special as you think.

That’s why real clean water starts right in your home. Our special systems, like reverse osmosis (RO) and whole-house filters, are designed to make your water truly safe and pure, not just “look clean.”

What We Often Find in Orange County Water

We’ve tested water all over, from San Clemente to Santa Ana, and here’s some of the stuff we often find in local tap water. And I’ll tell you what each one can do:

Every single one of these can show up in your water at levels the law says are “okay.” But “okay by law” doesn’t always mean “safe for your family.” We believe you deserve better than just “okay.”

How a Whole-House Filter Protects Your Entire Home

Imagine a superhero shield around your whole house. That’s what a good whole-house water filter does! It takes out almost all the bad stuff – like 95 to 99 out of every 100 harmful things – before the water even gets to any faucet, shower, or washing machine in your home.

• Chlorine & Chloramine: These are zapped away by special carbon filters. No more dry skin or weird smells!
• Bad Smells & Tastes (VOCs): Our filters use different layers of carbon to grab these sneaky chemicals.
• Dirt, Sand, & Rust: Tiny filters catch all the gritty stuff, so your water looks and feels cleaner.
• Heavy Metals: Special materials in our filters grab onto things like lead and copper, keeping them out of your water.
• PFAS & PFOA: These “forever chemicals” are trapped by advanced filters and special membranes.
• Yucky Tastes & Smells: We make sure your water tastes fresh and clean, like it should.

So, whether you’re in Dana Point taking a shower, or in Irvine washing dishes, every single drop of water in your home is protected. It’s peace of mind for your whole family.

How a Reverse Osmosis System Makes Water Super Pure

Reverse osmosis, or RO for short, is like a super-duper filter for your drinking water. It pushes water through a screen so tiny, even the smallest germs can’t get through. It’s like magic, but it’s science!

An RO system takes out almost everything, including:

• Dissolved Solids (TDS): This means salts, tiny bits of metal, and chemicals that are dissolved in the water.
• Fluoride: You can choose if you want this taken out or not.
• Arsenic, Lead, Nitrates, Chromium VI: All the really bad stuff we talked about earlier.
• PFAS & Pesticide Leftovers: Those tricky chemicals from farms and factories.
• Microplastics and Medicines: Tiny bits of plastic and even traces of old medicines that can end up in water.

The result? Water that’s as close to pure H₂O as we can get. No weird tastes, no worries, just clean, refreshing water for your family in San Juan Capistrano, Laguna Niguel, or wherever you call home.

What We Leave In (And Why That’s Good!)

Now, not all minerals are bad. In fact, some are really good for you! Your body needs tiny amounts of things like calcium, magnesium, and potassium. They help your nerves, bones, and keep your body working right.

Our whole-house filters are smart. They usually keep these good minerals while getting rid of the harmful stuff. It’s a great balance.

RO systems, because they’re so powerful, take out almost everything. That’s why we can add special filters that put back just the right amount of good minerals. This makes your water taste even better and helps keep your body balanced.

Our goal isn’t to take all the life out of your water. It’s to take out only the things that could hurt you or your home.

The Science Behind Our Multi-Stage Filters (Easy Peasy!)

Every McCowin Water system is like a team of superheroes, and each one has a special job. They work together, one after the other, to make your water amazing:

• First Filter (Sediment): This is like a bouncer at the door. It catches all the big stuff first – sand, rust, and dirt particles.
• Second Filter (Granular Carbon): This one is like a sponge. It soaks up chlorine and other chemicals that make water smell and taste bad.
• Third Filter (Catalytic Carbon): This is a super-sponge! It’s extra good at grabbing chloramine and those tricky bad smells.
• Fourth Filter (KDF Media): This is our heavy metal catcher. It helps get rid of things like lead and also fights off tiny germs.
• Fifth Filter (Reverse Osmosis Membrane – if you choose it): This is the super-fine screen. It takes out almost everything else, like dissolved salts and tiny toxins.
• Last Filter (Post-Carbon or Remineralizer): This is the finishing touch! It makes the water taste perfect and, if you want, adds back those good minerals.

Each step has a special mission. Together, they make water so pure, you’ll feel the difference on your skin and taste it in every sip. It’s how we make sure homes in places like Costa Mesa and Fountain Valley get the best water possible.

Why Those Small Pitcher Filters Aren’t Enough

You know those little filters you put in a pitcher or in your fridge? They promise clean water, right? But most of them only do one or two things – mostly just make the water taste a little better and take out some chlorine.

They don’t touch the really bad stuff like PFAS, nitrates, or heavy metals. They fill up fast, and sometimes they stop working well before you even know it.

If you’re using one of these as your only way to clean your water, you’re not really filtering. You’re just hoping for the best. And when it comes to your family’s health, hoping isn’t good enough.

The McCowin Difference: Water Made Just for Your Home

So, what bad stuff will a water filter take out? Well, it depends on YOUR water! Every single neighborhood in Orange County has different water. The water in Laguna Beach might be different from the water in Orange, or even just down the street in Irvine.

That’s why we always start with a free water test right in your home. We’ll come to you, whether you’re in San Juan Capistrano, Aliso Viejo, or anywhere else nearby. We’ll check your water’s “DNA” to see exactly what’s in it.

Then, and only then, do we design a water system that’s perfect for your home, your water pressure, and your family’s needs. Because no two homes, and no two waters, are ever exactly the same.

The Sneaky Bad Stuff You Can’t See or Smell

Even if your water looks clear and doesn’t smell, it can still have invisible dangers:

• Disinfection Byproducts (DBPs): These are tiny chemicals that form when chlorine mixes with other things in the water.
• Hormone Mimickers: These are tiny traces of old medicines that can get into the water and might mess with your body’s signals.
• Tiny Germs (Cysts): Like Giardia and Cryptosporidium, which can make you very sick.
• Oil Leftovers: Tiny bits of oil from factories or roads can sometimes get into the water.

All these invisible dangers are caught by McCowin’s special multi-stage systems. So, you never have to worry about them reaching your glass or your family.

Good Minerals vs. Bad Stuff: Knowing the Difference

It’s easy to get confused between “minerals in water” and “bad stuff in water.” They’re not the same thing at all!

Minerals: These are natural things from the earth that can be good for your health and make water taste good.

Contaminants (Bad Stuff): These are chemicals or toxins that don’t belong in your water and can make you sick or hurt your home.

That’s why our water testing is so important. We figure out what’s helpful and what’s harmful before we even talk about what kind of system you need. This way, you get exactly what’s best for your family in places like Laguna Niguel or Mission Viejo.

Why Some Minerals Make Water Taste Better

Have you ever tasted water that’s super “pure” but just tastes… flat? That’s because when an RO system takes out everything, it also takes out the good minerals that give water its natural, refreshing taste.

That’s why we can add back just the right amount of good minerals with special filters. It’s not just for show; it’s for balance and taste!

Water with the right minerals:

• Tastes clean and makes you want to drink more.
• Helps keep your body’s balance (pH) just right.
• Protects your pipes and faucets from getting damaged.
• Helps your body use the water better, so you feel more hydrated.

It’s not just filtered water; it’s water that’s been perfected, or as I like to say, “finished water.”

The McCowin Guarantee: Our Promise to You

Here at McCowin Water, we stand by our work. We’ve been doing this since 1972, and our family name is on every system we install. That’s why we have the McCowin Guarantee:

Our Promise: Your Water, Perfected.

If the water system we put in doesn’t work the way we promised it would…
If your water doesn’t taste, feel, or act exactly like we said it would…We’ll come back, take the whole system out, and either give you a new one or give you your money back.

No strings attached. Because your trust means more to us than any sale.

We want you to be completely happy and confident in your water. That’s the McCowin way, and it’s how we’ve built trust in communities like Irvine, Newport Beach, and all over Orange County for over 50 years.

The Hidden Cost of Not Filtering Your Water

Skipping out on a good water filter might seem like it saves money now, but it can actually cost you a lot more later. Here’s how:

So, you see, having pure water isn’t just an extra cost. It’s like buying insurance for your health, your home, and your wallet. It’s smart prevention.

Frequently Asked Questions

Q: How can I tell if my water is safe to drink?

A: The best way to determine if your water is safe is through comprehensive testing. Many contaminants, such as lead, PFAS, and nitrates, are invisible and odorless. While municipal water suppliers provide annual water quality reports, these may not cover all potential issues. A professional water test can reveal specific contaminants in your water, allowing you to make informed decisions about filtration and treatment options tailored to your needs.

Q: What are the benefits of a reverse osmosis (RO) system?

A: A reverse osmosis system is highly effective at removing a wide range of contaminants, including dissolved solids, heavy metals, and harmful chemicals. This process results in water that is nearly pure, free from unpleasant tastes and odors. Additionally, RO systems can improve the overall quality of your drinking water, making it safer and more enjoyable. Many users also appreciate the peace of mind that comes with knowing their water is thoroughly filtered.

Q: Can I install a water filtration system myself?

A: While some homeowners may attempt DIY installations, it is generally recommended to have a professional handle the installation of water filtration systems. Professionals ensure that the system is correctly set up, functioning optimally, and compliant with local plumbing codes. Additionally, they can provide valuable insights into the best system for your specific water quality and household needs, ensuring you get the most effective solution.

Q: How do I maintain my water filtration system?

A: Regular maintenance is crucial for ensuring your water filtration system operates effectively. This typically includes changing filters according to the manufacturer’s recommendations, checking for leaks, and monitoring water quality. Many companies, including McCowin Water, offer service plans that simplify maintenance, providing scheduled filter changes and system checks. Keeping up with maintenance helps prolong the life of your system and ensures your water remains clean and safe.

Q: What should I do if my water tastes or smells bad?

A: If you notice unpleasant tastes or odors in your water, it may indicate the presence of contaminants or issues with your plumbing. First, check for any visible signs of problems, such as rust or discoloration. If the issue persists, consider having your water tested to identify specific contaminants. Depending on the results, you may need to install a filtration system or address plumbing issues to restore the quality of your water.

Q: Are there any health risks associated with drinking unfiltered water?

A: Yes, drinking unfiltered water can pose various health risks, especially if it contains harmful contaminants like lead, chlorine, or bacteria. Long-term exposure to these substances can lead to serious health issues, including developmental problems in children and chronic illnesses in adults. Investing in a reliable water filtration system can significantly reduce these risks, providing you and your family with safe, clean drinking water.

Q: How does McCowin Water ensure the quality of its filtration systems?

A: McCowin Water prioritizes quality by using advanced filtration technologies and conducting thorough water tests to tailor systems to individual needs. Each system undergoes rigorous testing to ensure it effectively removes harmful contaminants while retaining beneficial minerals. Additionally, the company offers a strong guarantee, promising customer satisfaction and peace of mind. Their commitment to quality and customer service has built trust in the Orange County community for over 50 years.

Q: My water looks clear. Is it really bad?

A: Not always! Many of the worst things in water, like lead, arsenic, or “forever chemicals” (PFAS), are invisible and have no smell. That’s why just looking at your water isn’t enough. We need to test it to truly know what’s hiding inside.

Q: Does a water filter make my water taste better?

A: Absolutely! Most people notice a huge difference. Our systems take out chlorine and other things that make water taste and smell funny. You’ll get crisp, clean-tasting water that you’ll love to drink.

Q: Will a whole-house filter make my showers better?

A: Oh, yes! When chlorine and hard minerals are removed, your skin will feel softer, your hair will be healthier, and you won’t have that dry, itchy feeling after a shower. It’s a game-changer for your whole family, whether you’re in Laguna Beach or Irvine.

Q: What about the good minerals? Do you take those out?

A: Our whole-house filters are designed to keep the good, healthy minerals while removing the bad stuff. If you choose a super-pure RO system, it takes out almost everything, but we can add a special filter to put back just the right amount of good minerals for taste and health.

Q: How often do I need to change the filters?

A: It depends on your water and the system we install. But don’t worry, we’ll tell you exactly when and how to change them. We also offer service plans to make it super easy for you.

Q: Is a water filter expensive?

A: Think of it as an investment in your family’s health and your home. When you add up the money you save on bottled water, appliance repairs, and potential health costs, a good water system often pays for itself over time. We have options for every budget, and we always start with a free test so you know exactly what you need.

Q: How long does it take to install a system?

A: Most whole-house systems can be installed in a single day. Our team is quick, clean, and respectful of your home. We’ll make sure everything is working perfectly before we leave.

Q: Why should I choose McCowin Water over other companies?

A: We’ve been a family business in Orange County since 1972. We’re not just selling filters; we’re building relationships and trust. We offer a personalized approach, a free in-home water test, and our strong McCowin Guarantee. We treat your home and your water like our own.

A Final Word from Brian

When you truly understand what’s in your water, you’ll never look at it the same way again. For over 50 years, our family at McCowin Water has been helping families in Orange County – from the coast in San Clemente to the heart of Orange – get the clean water they deserve.

Some companies just sell filters. We sell certainty. We sell peace of mind. We sell the promise that your water will be safe, clean, and taste amazing, backed by our McCowin Guarantee.

So, when you ask, “What bad stuff will a water filter take out?” I hope you’ll remember this conversation. Because you deserve to know exactly what your system removes – and what it protects.

Ready for Better Water in Your Orange County Home?

At McCowin Water, we’ve been serving families like yours since 1972. We’re not a franchise; we’re your local water specialists, offering the best solutions for your unique water needs. From Irvine to Newport Beach, Laguna Beach to Anaheim, we’re here for you.

Your trust is our priority, backed by the McCowin Guarantee.

Call us at (949) 569-5736 or schedule your free water test today

Brian McCowin, Water Quality Specialist, CSLB C-55 #1022717, 50+ years in Orange County

© 2025 McCowin Water. All rights reserved.