11 DOMESTIC WATER TREATMENT SYSTEMS, COMPRISING AUTOMATIC WATER CONDITIONERS, AUTOMATIC PH NEUTRALIZERS, CHEMICAL FEED SYSTEMS, IRON FILTERS, ACTIVATED CARBON FILTERS, SEDIMENT FILTERS, NITRATE REMOVAL UNITS AND REVERSE OSMOSIS UNITS, WHICH ARE USED IN THE DOMESTIC WATER SOFTENING, CONDITIONING AND PURIFYING TREATMENT [ PROCESSED ] * PROCESS *