Unstabilised calcium hypochlorite granules for pool dealers, facility contractors and technical service teams needing a fast chlorine shock without cyanuric acid. The 65% available-chlorine format suits pool treatment and periodic super-chlorination where existing stabiliser levels matter. Buyers can choose 1kg, 2.5kg, 5kg, 10kg, 20kg or 25kg packs. Zagosa Spa & Pool containers are retail-ready with compliant labelling, supporting both counter sales and the larger quantities used across managed sites.
Available in 1kg, 2.5kg, 5kg, 10kg, 20kg and 25kg tubs.
Two shock products with different jobs: MPS for routine weekly oxidising, calcium hypochlorite for bringing neglected water back.
| What matters | Non-chlorine shock (MPS) | Chlorine shock (calcium hypochlorite) |
|---|---|---|
| Typical use | Routine weekly oxidising after ordinary bathing loads | Resetting water that has turned cloudy or green |
| Mode of action | Oxidises organic bather waste, leaving the sanitiser free to disinfect | Lifts free chlorine to a high level that destroys bacteria and algae directly |
| Effect on the sanitiser residual | Chlorine-free; in bromine systems it regenerates bromide back into active bromine | Adds a heavy chlorine dose above the normal maintained level |
| Wait before bathing | Brief: circulate, retest, then bathe | Until free chlorine has dropped below 5 ppm |
| Frequency | Every week, plus after parties or heavy use | Only when the water needs recovering |
| Cost per treatment | Small regular dose, low cost | Larger dose, but needed far less often |