How To Clean Your Water Filter Without Damaging It

Eric Waters

Key Takeaways For Cleaning Water Filter Housings

Before we get into the details, here’s what to know about cleaning your filtration system.

Most cartridges should be replaced: Sediment and carbon cartridges generally aren’t designed to be cleaned and reused.
Cleaning can damage filter media: Scrubbing or rinsing cartridges may reduce their filtration performance.
The housing can be cleaned: Use mild soap, warm water, and a soft brush to remove buildup without harsh chemicals.
Keep replacement on schedule: Follow the manufacturer’s recommendations instead of using cleaning to extend a filter’s life.

Now, let’s look at which components you can clean and how to care for them properly.

Keeping Your Filtered Water Fresh Starts With Proper Care

If your filtered water doesn't taste as fresh as it used to, learning how to clean a water filter properly can help, though the process looks different depending on which part of the system you're dealing with.

Some components can be cleaned safely, while others are built to be replaced rather than reused. Here's how to handle each part without causing damage or reducing how well your system works.

How Often Should You Clean Your System?

calendar with pushpins amidst a light blue background

Most households should clean filter housings and external components once or twice a year, usually at the same time as routine filter replacements.

Homes using well water or experiencing frequent sediment buildup may need more frequent cleaning. Regular maintenance helps protect system components and keeps water quality consistent.

Filter cartridges should always be replaced according to the manufacturer’s recommended schedule rather than cleaned and reused.

Turn Off and Depressurize the System First

water filtration system with pressure gauge in view

Always turn off the water supply before cleaning your filtration system. After shutting off the valve, release any remaining pressure by opening the filtration faucet or using the pressure release feature if your system includes one.

Skipping this step can cause pressurized water to spray when the housing is opened, creating a mess and potentially damaging seals or connections.

Taking a few extra moments to depressurize the system makes the cleaning process safer and easier.

Descaling Mineral Buildup

empty filter housing with mild scale buildup

Hard water can cause mineral deposits to accumulate on filter housings, fittings, faucets, and other system components. Over time, this buildup can affect appearance and system performance.

A diluted white vinegar solution is a simple way to dissolve mineral deposits without using harsh chemicals. Soaking affected parts for 15 to 30 minutes can help loosen calcium and mineral buildup.

Avoid abrasive scrubbers, bleach, and strong chemical cleaners on plastic components. These products can damage surfaces, weaken seals, and shorten the lifespan of your equipment.

Cleaning a UV Quartz Sleeve

quantum uv system on a wooden surface with the light tubes taken out of the stainless steel housing

Unlike sediment and carbon filters, the quartz sleeve in a UV water purification system is designed to be cleaned rather than replaced on every service visit. Mineral film or biofilm buildup on the sleeve can block UV light from reaching the water effectively, so wiping it down periodically keeps the system working as intended.

Turn off the system and remove the sleeve carefully, then wipe it with a soft cloth dampened with a diluted vinegar solution to remove scale, rinsing well before reinstalling. Avoid touching the sleeve with bare hands where possible, since oils from your skin can leave residue that affects UV transmission.

Cleaning a Water Softener Brine Tank

Water softener brine tanks can also benefit from occasional cleaning, especially if you notice salt bridges, hardened salt layers, or reduced softening performance.

To clean the tank, remove the remaining salt and water, then scrub the inside with warm soapy water. Rinse the tank thoroughly before adding fresh salt.

Cleaning the brine tank once a year or when regeneration performance decreases can help keep your water softener operating efficiently.

Cleaning the Filter Housing

wooden surface, blue background, and a filter housing with cartridge inside

Once the system is turned off and depressurized, remove the filter housing and take out the old cartridge. Since most cartridges are designed for replacement, do not reinstall a used filter unless the manufacturer specifically allows it.

Clean the empty housing with warm water and a small amount of mild dish soap. Use a soft brush or cloth to remove sediment, residue, or buildup from the inside walls, threads, and seals.

After cleaning, rinse the housing thoroughly to remove any remaining soap. Soap residue left inside the housing can affect water taste after a new filter is installed.

Sanitizing Your System

Many water treatment systems benefit from periodic sanitization to reduce bacterial buildup inside tanks, lines, and internal components.

Sanitization typically involves circulating an approved food-safe cleaning solution through the system and flushing it completely afterward. However, the exact process depends on the equipment type and manufacturer recommendations.

Always check your owner’s manual before sanitizing your system. Using an incorrect solution or method could damage components or affect warranty coverage.

Know What Can and Can't Be Cleaned

open water filter housing with an individual holding an o-ring

Most cartridge-style filters, including sediment, carbon, and RO membranes, aren't designed for cleaning. Scrubbing a carbon filter can break down the material inside, releasing trapped contaminants back into your water.

RO water filter membranes are especially delicate, and cleaning them incorrectly can tear the membrane or push contaminants through it. What you can clean safely is the housing that holds these filters, along with any external tanks or faucets that collect mineral buildup over time.

What to Avoid When Cleaning

Some cleaning methods can cause more harm than good. Avoid these common mistakes:

Do not scrub or wash sediment and carbon filters to reuse them, as this can damage the filtration media.
Do not use bleach, ammonia, or harsh chemicals on plastic housings and seals.
Do not rely on cleaning as a replacement for filter changes.
Do not reinstall damaged cartridges or worn components.

A clean filter housing cannot restore a filter that has already reached the end of its effective lifespan.

Reliable Systems from Aquasure

At Aquasure, our filtration systems are built for straightforward maintenance, with accessible housings that make cleaning and filter changes simple rather than a hassle. Our replacement filters for Harmony, Fortitude, Premier RO, and Quantum UV systems are designed to fit seamlessly, so keeping your system running well doesn't require guesswork.

Every product ships with technical support, an extended warranty, and free shipping on orders over $99, which gives you support whenever maintenance questions come up. Taking care of your system properly starts with the right parts, and Aquasure has you covered, backed by Confidence with Each Drop™.

Explore our replacement water filters today and keep your system running at its best.

FAQs

Can I clean and reuse a sediment or carbon filter?

No, these filters are designed for single use and can't be effectively cleaned without damaging the filtration media, so replacement is the safer option.

How often should I clean my water filter housing?

Most households benefit from cleaning the housing once or twice a year, timed around regular filter replacements, though well water setups may need it more often.

Is vinegar safe to use when cleaning a water filtration system?

Yes, a diluted white vinegar solution is a safe, effective way to remove mineral buildup without introducing harsh chemicals into your system.

What happens if I use bleach to clean my filter housing?

Bleach can degrade plastic housings and seals over time, leading to cracking or leaks, so it's best to stick with mild soap or a vinegar solution instead.

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