Spa Calcium Hypochlorite Granules

£18.72£634.97 Inc VAT

(1 customer review)

Product Description


Rapid Dissolving Calcium hypochlorite Granules are ideal for raising Bromine readings without having an impact on stabiliser reads (cyanuric acid). Ideal for Shock Dosing the Hot Tub water on a weekly basis after heavy bathing or as a preventative measure to ensure bacteria and organic contaminants are quickly eliminated.


1. Test the water for Bromine levels using a TEST KIT
2. Ideal range is a Bromine level of 6ppm to 8ppm, adjusted depending on occupancy (higher for greater occupancy and up to 8ppm, with a MINIMUM of 6ppm for lower occupancy). If tests show low readings then tub has experienced high use and should therefore be elevated to the higher end of the operating range. If bromine reads: 0 – 3ppm, Add 10mg of Calcium Hypochlorite granules. 4 – 6ppm Add 5mg of Calcium Hypochlorite granules. 7 – 8ppm Nothing to be added.
3. Ensure bathing has ceased before adding chemicals to the water
4. Add Calcium Hypochlorite Granules directly to circulating water with water temperature above 20 0C (for temperatures below 20°C add product to 10 litres of clean water in a clean plastic container and add to directly to the circulating spa water.)
5. During the dosing process always ensure water is circulating via the filter and all spa covers are removed.
6. For Drain down & shock dosing procedure please revert to Operations Manual or contact Operations Manager.


• Always ensure bathers are out of the water when adding chemicals.
• Never mix with any other chemicals including cleaning products, weed killers and chlorine products, as a dangerous reaction may occur.
• Always handle products in a well-ventilated area.
• Always wash hands thoroughly after handling chemicals.
• Store in a cool, dry, well ventilated, secure place. Ensure chemicals do not become damp in storage.
• Instructions and dosages given are a guide to most effective use.


• This container must not be used or contaminated with any other materials.

Additional Information

Weight 1 kg
Dimensions 105 × 105 × 200 cm

1kg, 5kg

Pack Of

1, 4, 6, 8, 12

1 review for Spa Calcium Hypochlorite Granules

  1. James M (verified owner)

    Great great great…. shock dosing tub with these really does give my tub a good dosing. Speedy shipping only 48hrs to receive.

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