Cleaning of swimming pool water - by recirculation with part filtration and addn. of oxidising agent whilst desalting

摘要

Swimming pool water both in and out-of-doors, in private or in public use, is cleaned by using flocculation or oxidation agents, and a filter with >=2 filtration stages. Only a part flow of the circulated water->=0.25 fold and =0.4 fold of the feed of the pump is cleaned. The addn. of the flocculant or the oxidising agent is effected in drops, possibly by hydraulic impulse, before the filter, upflow filtration being used, with swilling from above downwards. Exactly that amount of water corresp. to evapn. from the pool is let off continuously to keep the salts content constant. Method replaces the old circumstantial and labour intensive methods of cleaning the pool water, by a new elegant method without problems.