How quickly does it work?

60 minutes of full circulation lifts surface oils. Deep matting still needs an overnight soak.

How often can I use it?

Once per week as a top-up between full overnight soaks.

Do I have to remove the cartridge?

No. The product is dosed into the skimmer and works with the cartridge in place.

Will it replace my monthly soak?

No. It complements the soak by maintaining flow between services.

How many doses does 1 L cover?

Around 10 doses for a 1500 L hot tub.

Is it safe for salt and bromine systems?

Yes. It is salt-cell safe and compatible with chlorine, bromine and MPS sanitiser systems.

Why does it not need a soak?

The fast-action surfactants emulsify oils at far higher rates than soak chemistry, so a single circulation cycle is enough.

Will it damage paper pleats?

No. The dilute concentration in tub water is well below thresholds for paper or polyester pleat damage.

Marginally. Expect a 0.1-0.2 pH lift, which usually self-corrects within 24 hours.

Flow is still poor after dosing?

Cartridge is matted. Run an overnight soak with Filter Cartridge Cleaner.

Cloudy water after dosing?

Run filter for 4 hours; add 50 ml clarifier per 1500 L if cloudiness persists.

High organic load. Dose Foam Away and schedule the next overnight soak.

Instant cleaner vs cartridge soak?

Soak is for full reset every 4 weeks; instant cleaner is the in-between top-up that holds flow steady.

Instant cleaner vs hot tub flush?

Flush is for pipework before draining. Instant cleaner is for the live filter cartridge between services.

Instant Filter Cleaner

Name: Instant Filter Cleaner
Brand: ClearSpa
SKU: wc-4
Availability: InStock
Rating: 5.0 (4 reviews)

Quick-dissolve filter cleaner that lifts oils and lotions in 60 minutes, with no overnight soak. Ideal for between-soak top-ups when filter pressure has just begun to climb.

Lifts surface oils and lotions in 60 minutes.
Restores up to 70% of lost filter flow without removing the cartridge.
Adds no foam, scale or sanitiser interference.
Extends the gap between full overnight soaks.
Compatible with chlorine, bromine and salt systems.