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When to Change Your Water Filter in Your Home or Business
Pentair Water Solutions
12/20/2024
Water filtration systems keep your water tasting and smelling great. But filters don’t last forever. How long does the average water filter last? The short answer: it depends. Factors like how much water you use and the type of filter all play a role.
Let’s talk about why replacing your water filter matters, how often to replace a water filter, and what happens if you don’t.
How Long Does the Average Commercial and Residential Water Filter Last?
Curious about specific timelines? Here's how often to change a water filter on average.
- Carbon filters: Replace every six to 12 months regardless of setting.
- Sediment filters: Replace every six to nine months in a home and every three to six months for high-demand commercial systems.
- Reverse osmosis systems: Prefilters every six to 18 months; membranes every two years.
But keep in mind, all filters aren’t created equal. Their lifespan hinges on a number of factors, including:
- Water quality: Hard water and high sediment levels wear out filters faster.
- Usage: Busy restaurants? Bustling offices? Expect shorter lifespans.
- Filter type: Depending on the type, a filter might last anywhere from six months to two years.
Need help with replacements? Check out Pentair’s Replacement Finder for residential filters.
Signs It's Time for a New Filter
Don’t wait until disaster strikes. In most cases, your filter will give off a few warning signs before it stops working completely. Watch for these red flags so you know when it's time to change your water filter:
- Decreased water flow rate: A clogged filter slows everything down. Water that dribbles out of the tap is a sure sign something is backing up your supply.
- Changes in water taste or odor: Sulfur, chlorine, etc
- Visible dirt or sediment in the water: Is your water cloudy? Or maybe brown?
- Increased frequency of appliance repairs: Filters protect dishwashers, coffee makers, and more. Dirty filters equal more frequent repairs.
Your under sink system might give subtle hints, too. Don’t ignore them. Find the best under sink replacements to keep things running smoothly.
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Water quality is non-negotiable. To prove it, we've built state-of-the-art water quality labs and filled them with the best and brightest scientists — all so we can provide you with the best water of your life.
The Consequences of Neglecting Filter Replacement
Procrastination has a price. Skipping filter replacements may seem harmless, but the consequences are costly.
Over time, worn-out filters lose their ability to block contaminants effectively, leading to:
- Damaged appliances: Scale buildup wrecks your plumbing and equipment. Imagine the frustration of a coffee shop’s espresso machine breaking down during a morning rush — all because of a clogged water filter.
- High energy costs: Clogged filters force your systems to work harder. This not only inflates utility bills but also increases your carbon footprint.
- Gross water: No one wants to drink funky water. Unpleasant odors and tastes aren’t just unappealing — they’re a sign that your filtration system isn’t doing its job.
What's in your water?
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Worried about what may be in your water? Get our water test kit and send it in to us! We do extensive testing and will recommend products based on the makeup of your water. Get a test today!
*Please note that this water test kit does not test for PFAS.
Tips for Tracking Filter Usage and Setting Reminders
Keeping track of your filter’s lifespan doesn’t have to be a guessing game. Start by checking the manufacturer’s recommended replacement schedule. Most filters come with a suggested timeframe. Note this date on your calendar or set a reminder on your phone or computer.
For high-usage systems, like commercial water filters, monitor performance indicators such as water flow and quality. Keep a record of the installation date and any noticeable changes in clarity or taste.
If you’re managing multiple systems, like a whole-house setup and an under sink filter, group replacements around the same time. Consistency makes it easier to stay on top of maintenance and ensures your water stays clear and better tasting.
Replace Your Water Filter Regularly
Your water filtration system is your first line of defense. Whether it’s for your home or business, replacing filters regularly keeps water systems efficient. It’s a small task with a big payoff.
Need help finding the right filter? Explore Pentair’s whole house water filter systems or browse commercial water filter systems.
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