Relax calcium hypochlorite granules in 25kg tubs calcium in the pool’s swimmer basket

in the pool’s swimmer basket or to an automatic chlorinator

If it’s too low

These fit the Dolphin Wave 100 and the Dolphin M400 (4 brush model)

followed on the later blue Argonauts by 2 1/2" male threads with a screw-on union that accepts 2" pipe glued inside

Relax calcium hypochlorite granules in 25kg tubs calcium in the pool’s swimmer basketRelax calcium hypochlorite granules in 25kg tubs. These are high quality shock chlorine granules offering 70% free chlorine suitable for both residential and commercial pools, and hot tubs. If you are looking for a high power chlorine donor that is unstabilized meaning it does not contain cyanuric acid here's one for you. Available in store for customers to collect only.