| 摘要 |
A package and method for chlorinating a body of water such as a swimming pool, the package comprising a source of hypochlorite material which in use dissolves leaving a solid residue and a sachet containing the material, the sachet having at least one wall which is permeable to water and to chlorine , the permeability being such as in use to retain more than 50 wt % of the solid residue in the sachet. According to the method of use in a swimming pool the sachet is disposed in the skimmer box and the filter pump disperses the chlorine through the swimming pool. The hypochlorite material may contain a carbonate to release CO2 when most of the chlorine has been released, a gelling agent to block th selectvely pores in the sachet to contain the CO2 and a flocculating agent to agglomerate at least some of the solid residues. |
