Spa Bromine Granules

  • SpaChem Bromine Granules 1kg & Bromine Granules 5kg
  • Rapid dissolving granules for sanitizing your hot tub.
  • Dose weekly or boost your bromine level quickly.
  • 3g will raise your bromine level by 1ppm in a 1,000L hot tub.

Unlike chlorine granules and chlorine tablets, bromine is not very odorous: So for some, this is a preferable sanitizer.


£19.34£295.85 Inc VAT

(7 customer reviews)

Product Description

Spa Bromine Granules – Brominating Granules (1kg & 5kg) are rapid dissolving and specifically blended to disinfect spa and hot tub water. 

  • Bromine granules for hot tubs are great for topping up Bromine levels to maintain sanitization in your hot tub or spa, Our Bromine hot tub chemicals can be used in conjunction with Bromine Tablets to aid a consistent level of total bromine.
  • As noted our Bromine formulation is rapid dissolving and fast acting to increase your total bromine reading to the ideal range of 4 – 6ppm or parts per million.
  • In our specifications tab on this product we have listed a guidance on instructions, precautions and a warning, it goes without saying you must ensure you test the water with test strips before application and after any chemicals to ensure the actions you have taken have had the desired effect in achieving the correct ideal ranges needed. 
  • Part and parcel of managing your bromine levels is ensuring your water pH level and Total Alkalinity levels are also balanced.
  • Please also allow at least 20 minutes before entering the tub after chemically treating it and of course no one should be in the hot tub when dosing.
  • To all hot tub owners, hot tub care is a very important function when managing your water and to be effective in killing bacteria you must have consistent sanitisation levels in your spa at all times.
  • If you need to complete a bromine shock treatment in your hot tub an initial dose of 50mg which needs to be circulated for at least an 1 hour can be applied, but must be tested before entering to ensure Bromine levels have returned to within range, if too high run for a further 1 hour and recheck.  

Below is an average dosing guide:


Daily Dose Rates
Water volumes To increase the bromine level by
Litres Gallons 1ppm 3ppm 6ppm
1,100 220 3g 7g 14g
1,600 330 4g 10g 20g
How to use
Instructions 1. Maintain the pH balance between 7.4 – 7.6 2. On START UP and COMISSIONING of new water, use this product to Shock Dose the water to a minimum of 20 PPM with circulation / blowers on and all covers off. 3. Test the water with a BROMINE test kit, the ideal reading for Total Bromine is 4 – 6ppm 4. To increase the Total Bromine reading of the Spa or Hot Tub water by 1ppm add 3g of Spa Brominate Granules per 1000lts of water 5. Spa Brominate Granules can be added directly to the water with circulation running and water temperature above 20°C. 6. If using this product to “Shock Dose” the water please wait a minimum of 40 minutes before bathing re-starts. 7. If you experience difficulties please contact your local dealer
Precautions • 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.
Warning • This container must not be used or contaminated with any other materials.

Additional Information

Weight N/A
Dimensions 105 × 105 × 200 cm

1kg, 5kg

Pack Of

1, 4, 6, 8, 12

7 reviews for Spa Bromine Granules

  1. David Williams (verified owner)

    Great product and delivered well within time, ordered late Friday night and received Tuesday morning. Have also had telephone support with a few problems I have had with my tub, all round brilliant service. Thank you

  2. Christian W (verified owner)

    I was previously using chlorine but swopped on to bromine which was initially a bit daunting but with the advice from Spachem they helped with fantastic knowledge and experience and were not pushy in trying to sell additional items. I highly recommend their products and were completely satisfied with their customer service. Brilliant company & brilliant products7

  3. Lindsey J (verified owner)

    Amazing super quick delivery, every time I order from these guys it’s always super quick 48hrs, and it’s on my doorsteps. This also goes for the other products I have bought. Thank you

  4. Samantha W (verified owner)

    Quality product, quick delivery which is always great, but more so on the going an extra mile service I’ve had a couple of hot tub water issues and called spachem for some advise and the service was amazing really made me feel at ease I’ve even joined there WhatsApp messaging group so anytime I need any help I can just message.

  5. Sue (verified owner)

    We have been using spachems bromine granules for about 4 months now and have to say these are ace, we get great consistent readings all the time, we have tried a few other brands in our 4 years of having our tub and none come close to what these do. Well worth buying 5 stars. Ps delivery was ace too

  6. Lisa (verified owner)

    Just received my order, very prompt delivery as i was expecting on Monday. Well packed and as described on the website. Thank you

  7. Samuel (verified owner)

    Blooming brilliant product, exactly what it says on the time, fast acting yes, rapid dissolving yes. Maintain levels in our spa and actually learnt some more insights into to bromine today after reading there blog about dormant bromine, totally makes sense now…

    Thank you spachem

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