When to replace a hot tub filter? Instructions & cleaning tips

When to replace hot tub filters - and how often to clean them

Every hot tub owner asks the question: when to replace hot tub filters. The answer depends largely on the filter type. We explain the differences between cartridge filters and the EGO3 Filterball system, including specific replacement and cleaning intervals.

Cartridge filters: when to replace and how to clean them?

When dirt and discoloration become harder and harder to wash off, it’s time to buy a new cartridge filter.

Cartridge filters must be replaced completely every 1–2 years.

Cartridge filters must be cleaned every 1–2 weeks.

Cleaning cartridge filters - step by step

1. Remove the filter and rinse off the worst of the dirt with a stream of water.
2. Soak the filter in a bucket of water and filter cleaner. Without filter cleaner, oils and fats won’t come out of the fine fabric, which shortens the filter’s lifespan.
3. After about 3–6 hours, remove it from the chemical bath and rinse it immediately with fresh water.
4. Rinse each pleat individually with a stronger stream of water.

Cleaning takes about 1 hour of actual work and requires around 50 liters of water and filter cleaner (about 15 euros).

EGO3 hot tub filter: when to replace and how to clean it?

EGO3 filters use spherical filter media - the EGO3 Filterballs. Only these need to be cleaned and eventually replaced.

You never need to replace the EGO3 filter container - it is reusable.

EGO3 Filterballs should be cleaned every 8 weeks.

Cleaning EGO3 filters - step by step

1. Remove the filter from the pool and open the lid.
2. Squeeze the Filterballs under running water - like a sponge.
3. Put the Filterballs back into the EGO3 container and put it back into operation.

Cleaning takes just 5–6 minutes, requires about 5 liters of water, and uses no chemicals at all.

Comparison: When to replace hot tub filters - cartridge filters vs. EGO3

Over 10 years, you need to replace cartridge filters at least 5–10 times as often as EGO3 filters.

Cartridge filters need to be cleaned 4–8 times as often as EGO3 filters.

Cleaning a cartridge filter takes 10 times as long as cleaning an EGO3 filter.

Cleaning a cartridge filter uses 10 times as much water.

EGO3 filters also clearly win when it comes to chemicals.

This gives the EGO3 filter an overall score of 5:0 IN FAVOR OF the EGO3 filter compared with the cartridge filter.

Conclusion: No matter what the issue is when it comes to replacing hot tub filters, the EGO3 Filterball filter beats the cartridge filter in every respect - replacement, cleaning, resource consumption, and workload.