[captbillc]

up here in minnesota at the western end of lake superior i have to drain the water tanks. i disconnect the fresh water hoses from the water heater & put them together with a short copper pipe so i don't have to pump the RV antifreeze through the heater. i drain the water out of the heater & pump RV antifreeze through the system using a hose from the water pump to the jug of antifreeze. i winterize the head by shutting the seacock & taking the inlet hose off at the head. i put a hose from the head inlet to the RV antifreeze jug & pump it through the head into the holding tank ( after the holding tank is pumped out ) this puts antifreeze through both sides of the head pump. if you closed the seacock, open it when the boat is hauled so it doesn't freeze.