* This Is A Water Pressure Control Valve Fitted To The Cold Water Supply To The Geyser. * The Purpose Of The Pressure Control Valve Is To Balance The Water Pressure Of The Hot And Cold Water Supply To Bathsa Showers And Basins. * For A Balanced System The Cold Water Supply To Bathsa Basinsa Showers Etc Must Be Taken Off The Supply Between The Pressure Control Valve And The Geyser. * The Pressure Control Valve Reduces The Cold Water Pressure To The Same Pressure Of The Hot Water Coming From The Geyser. * Sometimes Plumbers Will Locate The Pressure Control Valve Outside Of The House Where The Cold Water Supply Enters The House. * Mostly However The Multi Valve Will Be Found In Close Proximity To The Geyser. * The Pressure Control Of The Multi Valve Is Designed To Release Excess Pressure And May Therefore Drip When Water Is Drawn Through The Valve. * Each Geyser Must Also Be Fitted With A Pressure Control Valve. * As Most Geysers Have A Maximum Working Pressure It Is Vital That The Pressure Is Controlled In Order For The Geyser To Have A Longer Life Span. * If No Pressure Control Valve Has Been Fitted Then The Geyser Guarantee Will Likely Not Be Honoured.