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.
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)
bressel,melanie –
Swift purchase and arrived before the date stated would use again
Ann Mackintosh (verified owner) –
Need a mathematician to work out quantity of granules to water.
Happy shopper 71 (verified owner) –
Just what we needed for 2 hot tubs for holiday lets
Hodge Hedgeson (verified owner) –
Chlorinated my pool
Malc Peirce (verified owner) –
Its chlorine.
mamalisa (verified owner) –
I ordered this item on the tuesday evening and it was here by courier the thursday morning which was great.the type of chemicals and amount is what i ordered by it isnt the DeepBlue brand. It is made by a company called SCP.I am new to using chemicals for a spa so i have to assume that it is still right and will work ok but I had ordered this thinking it was the same brand as the DeepBlue starter kit i had previously bought. I wanted it to be the same so that i could be sure that the instructions were the same as what i have gotten used to.Hopefully there will not be any problem with it but i am rather disappointed as i hate it when the brand and product that is sent is not what was advertised.I will update this review once we have used it a few times and can vouch for its quality.
TheGermanCosmonaut –
One cap of this every week or so is keeping the green at bay and giving me nice clear water in the hot tub. Cheaper than the official alternatives and just as good.
Mrs A L Reid –
Arrived very quickly and product was as expected
G. R. Hough –
Keeping safe
Mikey Wetzel –
Good value fast delivery