How To Clean Your Hot Tub Filter: A Step-by-step Uk Guide

By Author: James Franklin
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Keeping your hot tub clean isn’t just about sparkling water—it’s also about what’s going on beneath the surface. Your hot tub’s filter plays a crucial role in trapping dirt, debris, oils, and other contaminants. If neglected, it can affect water quality, damage the pump, and shorten the lifespan of your hot tub. Regular cleaning keeps your tub running smoothly and hygienically. Here's a simple, step-by-step UK-friendly guide to cleaning your hot tub filter.

Why Clean Your Hot Tub Filter?
In the UK, where many homes use hot tubs for relaxation year-round, your filter works overtime—especially during colder months. A clogged filter reduces water flow, forces your hot tub to work harder, and may lead to expensive repairs. Cleaning it every 2–4 weeks (and replacing it every 12–18 months) is essential maintenance.

What You'll Need:
Garden hose with spray nozzle

Bucket (large enough to submerge the filter)

Hot tub filter cleaner or white vinegar

A soft brush (optional)

Rubber gloves

Step-by-Step Cleaning Process

Switch Off the Power
Always ...
... start by turning off the hot tub at the mains to prevent the pump from running while the filter is removed.

Remove the Filter
Locate the filter housing—usually under the skimmer or side compartment. Gently lift out the filter cartridge.

Rinse the Filter
Using a garden hose with a spray nozzle, rinse the filter from top to bottom. Make sure to get between each pleat to dislodge debris. Avoid using a pressure washer as it may damage the filter fibres.

Deep Clean the Filter
For a more thorough clean, soak the filter in a bucket filled with warm water and a specialist hot tub filter cleaner. Alternatively, use a 50/50 mix of water and white vinegar to dissolve oils and scale build-up. Leave to soak for at least 6 hours or overnight.

Rinse Again
After soaking, rinse the filter thoroughly to remove any remaining cleaner or vinegar solution. This is important to prevent foaming or skin irritation once it’s back in use.

Let It Dry
Allow the filter to air-dry completely before reinserting. Having a spare filter on hand is helpful so you can rotate them without downtime.

Reinstall and Power Up
Place the dry filter back into its housing, ensure it's secure, and switch the power back on.

Conclusion
Clean your filter every 2–4 weeks depending on usage.

Replace the filter at least once a year.

If your water becomes cloudy or flow decreases, check the filter first.

Keeping your hot tub filter clean is a small task that makes a big difference in performance, hygiene, and relaxation time.

Mark Smith is an experienced content writer with a passion for crafting engaging and informative articles. With a diverse background in various industries, he excels at creating compelling narratives that resonate with readers and drive results.