ChloroKlean stabilised chlorine dioxide concentrate for pool and spa engineers carrying out oxidative cleaning of water systems and pipework. It activates in situ after entering water below pH 10 and can be used with chlorine, bromine and salt systems. Trade buyers can order 0.5L, 1L, 2.5L and 5L containers, allowing stockists and service firms to match pack size to each job. The range gives specialist contractors a compact liquid line for addressing organic loading and biofilm during planned system care.
Available in 0.5L, 1L, 2.5L and 5L bottles.
A stockist's view of the three sanitiser chemistries: where each sells, how it behaves in heated water and what it costs the end user to run.
| What matters | Chlorine | Bromine | Chlorine dioxide |
|---|---|---|---|
| Typical use | Routine daily sanitising at the lowest cost | Spas where a gentler, more stable residual is preferred | Clean-up treatments, biofilm removal and recovering poor water |
| Working level | Free chlorine 3 to 5 ppm | Total bromine 4 to 6 ppm | Applied as a periodic clean-up dose rather than a maintained residual |
| Behaviour in heated water | Depletes more quickly at spa temperatures | Holds its efficacy in warm water | Strong oxidiser; the usual choice where biofilm is suspected |
| Dependence on pH | Most effective between pH 7.2 and 7.6 | Tolerates a broader pH window | Performance changes little with pH |
| Smell | Chloramine odour develops if combined chlorine is not oxidised | Less pronounced than chlorine | Little odour at recommended doses |
| Running cost for the end user | Cheapest per week | A little above chlorine | Higher per dose, offset by infrequent use |
| Zagosa Spa & Pool lines | SDIC granules and 20g mini tablets | 20g bromine tablets and BCDMH granules | ChloroKlean chlorine dioxide |