Multi-Action Chlorine Tablets 5 kg
Slow-dissolving 200g tablets with built-in algaecide and clarifier. The all-in-one solution for busy pool owners.
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🇬🇧 The UK's complete pool care system
Premium pool chemicals delivered from our UK warehouse. A free water-testing app that tells you exactly what to add. Thermotec™ heat pumps to keep your pool warm for months longer.
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Professional-grade chlorine, pH balancers, shock treatments, algaecides and more — all formulated for UK pools and dispatched fast from our UK warehouse.
Shop on Amazon →Enter your pool readings and get instant, personalised treatment advice. Know exactly which products to add, in what quantity — no guesswork.
Get started free →Extend your swim season by months with a Thermotec™ pool heat pump. The UK's most energy-efficient pool heating — by our sister brand HeatPumps4Pools.
Explore heat pumps →UK stock, fast dispatch
Slow-dissolving 200g tablets with built-in algaecide and clarifier. The all-in-one solution for busy pool owners.
Fast-dissolving sodium bisulphate granules to bring pH back into the ideal 7.2–7.6 range quickly and safely.
Raises pH when levels drop below the safe range. Essential for pools prone to acidic water or after heavy rain.
Fast-acting chlorine shock to destroy organic matter and restore water clarity after heavy use or algae outbreaks.
Stabilises total alkalinity to protect against sudden pH swings, prolonging the life of your pool equipment.
Long-lasting algae prevention for crystal-clear water all season. Compatible with chlorine and salt-water pools.
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Stop guessing. The SafeSplash app analyses your test readings against UK pool standards and gives you a precise treatment plan — then links you straight to the right products.
Test your water
Use any standard test kit or strips. Takes 30 seconds.
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pH, chlorine, alkalinity, hardness, CYA and more.
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By HeatPumps4Pools
A Thermotec™ pool heat pump can extend your swimming season by 3–4 months — and with COP ratings up to 16, it costs a fraction of a gas heater to run. Installed by our UK engineers.
+3–4months
More swimming per year
COP 16
Ultra-efficient heating
100%
UK installation team
5★
Customer rated
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