Our experts say...

Sprinkle the correct amount directly into the water in your hot tub.

Alternatively the shock pot contains the correct single dose for the average domestic swimming pool.

Take care to avoid inhalation when dosing.

HTH Blackal Shock 1L

£31.85

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Please note that Fi-Clor are rebranding to hth.

 

Rebranded From Fi Clor

HTH Blackal Shock Algaecide is a complex, high dose Copper Based Algaecide. It is specifically designed to destroy chlorine resistant algae, such as Black Algae, Mustard Algae and Pink Algae, without using a chlorine shock treatment.

  • Product Innovation.
  • Very high content of active ingredients (do not overdose the product).
  • Incompatible with PHMB and any other product containing copper sulphate.
  • Slightly foaming.
  • Liquid.
  • Destroys all types of algae, event the most resistant (mustard, black, pink, etc…) and prevents their recurrence.
  • Easy to use: Graduated container.
  • Filtration must be on and bathers must be out of the water.
  • Do not dilute before use.
  • Do not mix with other products.
  • Store in a dry, well ventilated place with temperatures not exceeding 35°C.

Warning – this product should not be overdosed: maximum use is once every three months

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