Description
These chlorine granules are one of the most popular products for ensuring pool and spa water is safe and bacteria free.
Apply regularly to achieve the recommended free chlorine level of 3-5 mg/l (ppm) for hot tubs or 1-3 mg/l (ppm) for swimming pools. These granules are rapid dissolving, long lasting and have little effect on the pH of the water. They are suitable for shock dosing small above ground pools. You can find dosing amounts below.
Key Features
Granular chlorine has little effect on the pH level of the water. These stabilised chlorine granules are ideal for regular dosing of your swimming pool or spa, to produce free active chlorine which kills bacteria and other potentially harmful organisms.
Subject to availability these may be sent in multiples of smaller tubs, from 1Kg to 25Kg tubs.
Application Instructions
1. Maintain pH level within the ideal range of 7.2 – 7.6. If outside this range please use our PH plus or PH minus products to adjust for the best results.
2. Maintain free chlorine residuals for spas within the range 3 – 5mg/l (ppm). For swimming pools it should be 1 – 3mg/l (ppm). Freshly filled spas require an initial shock or start up dose of chlorine: 50mg/l (ppm) for 1 hour or 20mg/l (ppm) for 2 hours.
3. This product may be applied directly to pools or spas where temperatures exceed 20 degrees C. If below this temperature or in doubt it is recommended to pre-dissolve in a clean plastic container at a maximum rate of 10g of product per 0.2 gallons (1ltr) in water. Stir well to ensure product is fully dissolved. Add the resulting solution to the spa or pool whilst the pumps are turned ‘on’.
4. Repeat dose application if necessary to achieve the required levels.
5. It is recommended that you periodically (e.g. weekly or after heavy spa use) shock dose your spa to eliminate any excess contamination.
Dose Rates
Medium hot tub 1,000 litre (220 Gallons) of water requires 2g to increase the chlorine level by 1mg/l (ppm) or 6g to increase chlorine level by 3mg/l(ppm)
Large hot tub 1,500 litre (330 Gallons) of water requires 3g to increase the chlorine level by 1mg/l (ppm) or 9g to increase chlorine level by 3mg/l(ppm)
Small pool 40,000 litres of water requires 80g to increase the chlorine level by 1mg/l (ppm) or 240g to increase chlorine level by 3mg/l(ppm)
Medium pool 60,000 litres of water requires 120g to increase the chlorine level by 1mg/l (ppm) or 360g to increase chlorine level by 3mg/l(ppm)
Large pool 80,000 litres of water requires 160g to increase the chlorine level by 1mg/l (ppm) or 480g to increase chlorine level by 3mg/l(ppm)
Spencer Bell –
Have used this produced since we bought the hot tub. Excellent results in keeping the water clear, provided you follow the instructions.
phillip dorritt –
As per the headline, this product IS as advertised. I received this package almost a week ago and refilled my overground 10FT pool; I super-chlorinated the water as you’d normally do with fresh fills and I’m yet to top up the chlorine levels. In comparison to the other chlorine tablets product not related in any way to this manufacturer or product, I had to top up the chlorine *everyday*. In short, this product saves you money because it’s stabilised with Cyanuric acid and will last much longer. Worth £41+ for the 5L.
Alexandre A Acacio –
This supplier sent me tablets instead of granules and then when I told them they had sent the wrong thing they told me to grind the tablets up and they would be ok!! Seems like too much trouble and I am concerned because these are chemicals with warnings on and I don’t want to risk anything!! I am disappointed they didn’t just dispatch a replacement!! I replied to say not acceptable but i am still awaiting their response I won’t be using them again
Mr Leigh Jinman –
very good value and the product is of good quality
notdave –
Awful
Frank Radcliffe –
Did what it needed to. Used in a large paddling pool and kept the levels where they needed to be!
Julie Nash –
Arrived promptly, does the job.
Adam Roberts –
good value , does the job, good price,
jonas heitzer –
It’s chlorine and it’s in granular form!.
companionset –
Great Chlorine