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From our technical experts

Acti Large 1.5kg Multifunctional Chlorine Floating Dispenser


  • Slow release sanitiser, clarifier and algaecide
  • Suitable for Inground & Above Ground Pools
  • Use to control bacteria & algae

Out of stock

SKU: ACT-500-0141 Categories: ,


The most common way to kill bacteria in your pool and keep your swimming pool water healthy is to use chlorine. Before using chlorine, it is important to have a correct water balance first. Once this has been achieved, chlorine levels between 1.0-3.0 mg/l should be satisfactory to preserve bacteria free swimming pool water. There are two ways to tell if your pool is a well-managed chlorine treated swimming pool is that it will have no odour and the level of chloramines will be less than 0.5 mg/l. Here at Cascade Pools we have a wide range of swimming pool chemicals for you to choose from to suit your swimming pool requirements.

Suitable for many different pool sizes
Stabilised to prevent chlorine loss to sunlight
Prior to using this product adjust the pH level to the ideal range 7.2 – 7.6 as this floater releases chlorine slowly over a period of 3 – 5 weeks depending on water flow prior to its use
Chlorine levels should be maintained between 1 – 3ppm

As a guide, the 720g floating dispenser will treat pools between 1500 – 5000 gallons. The 1.5kg floating dispenser will treat pools between 5000 – 20000 gallons.

Application Instructions: Cut the two perforated sections of the label marked with ‘scissors-cut’. Choose your setting depending on the size of the pool and the chlorine level required. If chlorine levels are outside the recommended range of 1 to 3ppm – either too high or too low, then adjust the dispenser base to expose more or fewer tablets to water flow.

Place the floating dispenser in an upright position in the pool and hold for a few seconds until the cartridge fills with water before releasing to float on the pool surface. Do not submerge the dispenser completely and block the vent holes.

The dispenser will tip over on its side when the contents have dissolved. A tilting dispenser is an indication that it will need replacing soon and the chlorine level output is reducing.

  • Multifunctional Chlorine Floating Dispenser
  • Use for bacteria and algae control in swimming pools
  • A slow release¬†sanitiser, clarifier and algaecide
  • Sun stabilised
  • Adjustable for appropriate chemical distribution
  • Available in two sizes: 720g & 1.5kg
  • Ideal for small or medium pools
  • Above ground or inground pools
  • Continually chlorinates the water
  • Part of the Blue Horizons BOAST system

How to treat green water

Find out all you need to know about algae and green water, how to treat it and how to cure it.

Returns Policy

Your rights to return goods are protected under the EU Distance Selling Directive.

You are entitled to cancel your order and return the goods within 7 working days for a full refund not including the cost of delivery. Do this by contacting us by email or telephone and quoting the order number supplied to you. Your refund will be paid within 30 days. You are responsible for the cost and risk of loss or damage when returning the goods, so you should take out enough postal insurance to cover their value. This cancellation policy does not affect your rights when we are at fault - for example, if goods are faulty or incorrectly-described.

Exclusions: Bespoke items (made to measure items) are not included and cannot be returned. If a bespoke item is faulty then the product warranty /guarantee will take effect.

Any goods returned should be in saleable condition.

These terms apply to your order. We may change our terms and conditions at any time, so please do not assume that the same terms will apply in the future.

None of these terms affect your legal rights and these are not diminished in any way. If any term is held to be invalid under any applicable statute or rule of law, that term is automatically omitted from the terms to minimum extent necessary to comply with the law and without affecting the validity or enforceability of the remainder.

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