Install a twin Metsorb arsenic removal system as manufactured by Clack and using 2 cubic feet of Metsorb. Replace existing 119 Gallon well tank with a new unit and install a new stainless steel tank T assembly. Remove and dispose of old tank Well tank warranty: manufacturers five years. WellRite. Clack filter valves and mineral tanks: manufacturer five years Blue Heron Workmanship: 90 days for deficiencies in workmanship and practically speaking we have a no questions asked return policy for one year.