Pool Super Clarifying Tablets - Aluminium Sulphate 50g Tablets

Aluminium sulphate slow-release clarifier tablets that sit in the skimmer or pump strainer for week-long sparkle. 36 tablets per tub for a full season of hands-off polish.

• Releases aluminium sulphate coagulant slowly over 5-7 days per tablet.
• Maintains crystal clarity without weekly bucket dosing.
• Compatible with sand and cartridge filters.
• Cuts cloudy water risk in heavy bather load weeks.
• Replaces routine liquid clarifier with a hands-off feed.

Sizes and prices

• 36 Tablets: £54.95

When you need it

• You want clarity prevention rather than recovery.
• Weekly liquid clarifier is missing the haze window.
• Heavy bather load is forecast for weekends.
• You want a low-maintenance set-and-forget clarity routine.
• Sand filter is too coarse to catch particles unaided.

How to use

1. Test pH 7.2-7.6 and free chlorine in band before adding tablet.
2. Place 1 tablet per 30-40 m³ in the skimmer basket or pump strainer.
3. Run filtration on normal cycle for 7 days.
4. Replace tablet weekly; check skimmer flow each time.
5. Backwash sand filter or rinse cartridge fortnightly.
6. Switch to liquid clarifier if water haze appears mid-week.

Dosing guide

Steady weekly feed. Use alongside, not instead of, weekly chlorine and pH testing. Replace tablet on the same day each week.

• For 20 m³, add 1 tablet weekly to reach Weekly maintenance.
• For 40 m³, add 1 tablet weekly to reach Weekly maintenance.
• For 60 m³, add 2 tablets weekly to reach Weekly maintenance.
• For 100 m³, add 3 tablets weekly to reach Weekly maintenance.
• For Heavy load week, add 2 tablets weekly to reach Lift to 2 tablets in 40 m³.

How it works

Aluminium sulphate compressed into 50 g slow-release clarifier tablets, intended for skimmer basket or pump strainer feed. 36 tablets per tub.

Tablet erodes under skimmer flow, releasing aluminium sulphate continuously into circulation. The Al³⁺ ions neutralise the negative surface charge on suspended fines so they coalesce into filter-catchable clusters.

Liquid clarifier is reactive; tablets are preventive. A continuous low dose stops haze forming in the first place, which is far easier than chasing cloudy water once it appears.

Frequently asked questions

How long does one tablet last?

5-7 days under normal skimmer flow.

Where do I put the tablet?

Skimmer basket or pump strainer; never broadcast loose into the pool.

How many for my pool?

1 tablet per 30-40 m³ per week. Larger pools dose 2-3 tablets weekly.

Pack sizes?

Single 36-tablet tub, enough for roughly a full UK swim season at 1 tablet per skimmer per week.

Liquid or tablets?

Liquid for haze recovery; tablets for routine prevention. Use both as the season demands.

Will it work with my sand filter?

Yes. Particularly useful on sand filters because their 20-micron cut-off lets fines through.

What is the active ingredient?

Aluminium sulphate coagulant in 50 g slow-release tablets.

Does it consume chlorine?

No. Aluminium sulphate is a coagulant; chlorine bank is unaffected.

How much aluminium sulphate per tablet?

Roughly 40 g of aluminium sulphate per 50 g tablet, balance is binder and slow-release matrix.

Tablet not dissolving?

Check skimmer flow and pump runtime; cold water also slows release.

Cloud not clearing?

Add a one-shot liquid dose; tablets prevent rather than cure heavy haze.

Tablets vs liquid clarifier?

Tablets for set-and-forget weekly cover; liquid for emergency haze recovery. Different jobs.

Tablets vs flocculant?

Tablets keep particles in circulation for filter capture; flocculant drops them to the floor for vacuuming. Tablets are routine, floc is emergency.