How often should I chemically clean my filter?

Every 6 months for residential pools; every 3 months for hot tubs and high-load commercial pools.

Can I use it on cartridge filters?

Use ClearSpa Filter Cartridge Cleaner for cartridges. These granules are formulated for bulk media.

How long should the soak be?

8-12 hours for residential filters; up to 24 hours for heavily fouled commercial filters.

How many cleans does 1 kg cover?

Around 10 cleans of a 25 kg residential pool filter at the standard 100 g dose.

Is it safe for glass-bead media?

Yes. The blend is compatible with sand, glass beads, zeolite and ceramic filtration media.

Does it work with salt-water systems?

Yes. The cleaner is salt-system safe and will not damage chlorinator cells.

Why does sand need chemical cleaning?

Body oils bind to silica grains and cannot be backwashed away. The alkali in the cleaner saponifies the oils so they release on the next backwash.

Will it raise total dissolved solids?

Marginally, since most product is rinsed to waste during backwash.

Why must I wait 4 hours before bathing?

To ensure all surfactant has rinsed out of the bed and sanitiser has redistributed.

Pool went cloudy after the clean?

Loose debris flushed back into the pool. Run filter for 24 hours and add 50 ml Sparkle Clarifier per 1500 L.

Skin irritation after refitting?

Insufficient rinse. Backwash for another 5 minutes then dose Non-Chlorine Shock and retest before bathing.

Filter pressure rises again next week?

Bather load is high or sanitiser is low. Hold sanitiser in band and shock weekly to slow oil build-up.

Granules vs cartridge cleaner?

Granules clean bulk media inside a sealed housing; cartridge cleaner is a soak liquid for removable pleated cartridges.

Granules vs hot tub flush?

Flush cleans pipework biofilm before a water change. Granules clean the filter media itself. Use flush first, then clean the filter.

Filter Cleaner Granules

Name: Filter Cleaner Granules
Brand: ClearSpa
SKU: wc-2
Availability: InStock
Rating: 4.5 (8 reviews)

Powerful alkaline granules that strip oils, lotions and biofilm from sand, glass-bead and ceramic filter media. Use for the periodic deep clean that a backwash alone cannot deliver.

Dissolves trapped body oils and lotions inside the filter bed.
Removes biofilm that hides bacteria from sanitiser.
Restores filter flow and pressure to baseline.
Extends sand or glass-bead media life by up to 12 months.
Reduces backwash frequency once dosed.