How to clean whirlpool filters properly!

A hot tub in the garden is the epitome of luxury and relaxation. However, regular cleaning of the whirlpool filter is essential to ensure that the bubbling water invites you to relax. Only a clean filter ensures hygienic and clear water - and an unclouded spa experience.

In this article, you will learn everything you need to know about cleaning your hot tub filter.

Why is cleaning the hot tub filter so important?

Your hot tub filter acts as a 'kidney' that removes dirt, dander, hair and other impurities from the water. A clean filter brings many benefits:

  • Crystal clear water: A dirty filter can cause cloudy water.

  • Optimum water flow: Only a clean filter allows the water to circulate unhindered.

  • Hygienic water: Bacteria and algae formation is effectively prevented.

  • Longer filter service life: Regular cleaning protects the filter and extends its service life.

The anatomy of a whirlpool filter

Whirlpool filters are simple in design and usually consist of three main components:

  • Filter media: Pleated fabric (usually polyester) that traps impurities.

  • Core: A tube made of PVC in the center through which the water flows.

  • End caps: Plastic caps at both ends that hold the filter in place in the piping.


Cleaning methods for your whirlpool filter

Depending on the degree of soiling, you can choose from various cleaning methods:

1. quick rinsing

  • When? Weekly cleaning.

  • How? Remove the filter and rinse it thoroughly with a garden hose.

  • Advantage: This method is suitable for light soiling and removes superficial dirt quickly and easily.

2. chemical rinsing

  • When? Monthly cleaning.

  • How? Spray the filter with a special whirlpool filter cleaner.

  • Important: Leave the cleaner to work according to the manufacturer's instructions (usually 5-15 minutes) and then rinse thoroughly to avoid foaming in the whirlpool tub.

  • Advantage: Effective for more stubborn deposits.

3. chemical soaking

  • When? Every 3-4 months or with intensive use.

  • How? Place the filter in a bucket of water and filter cleaner for 24 hours.

  • Advantage: This method also removes deep-seated dirt and is ideal for deep cleaning, e.g. before winter storage.

What you should avoid when cleaning

Some cleaning methods can damage the filter or impair the water quality. Avoid the following:

  • Dishwasher: High temperatures and aggressive cleaning agents damage the filter.

  • Bleach: Bleach destroys the filter fibers and reduces the service life.

  • Household cleaners: These often lead to heavy foaming in the whirlpool.

Tip: Only use clear water or special whirlpool filter cleaners for optimum results.


When should the whirlpool filter be replaced?

Even with good care, a whirlpool filter has a limited service life. You should replace the filter when:

  • It looks old and worn,

  • it has lost its shape,

  • or it is 1-2 years old.

A new filter will ensure optimum filtration and hygienic water again.


Alternative filter types: Polymer fiber filter balls

In addition to the classic lamella filters, there are innovative alternatives such as filters with polymer fiber balls.

Advantages:

  • Larger filter surface area: More effective filtering due to the many small balls.

  • Higher water flow rate: Quick and efficient cleaning of the water.

  • Easy cleaning: Some models can even be cleaned in the washing machine.

These filters are an interesting option for anyone looking for a more efficient and convenient filter solution.

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