TOOLS AND SUPPLIES

• Nontoxic marine propylene glycol antifreeze with a minus-100-degree F rating ($10.99/gallon, westmarine.com)

• Camco Water Heater Bypass Kit to avoid filling water heater with antifreeze ($29.99, westmarine.com)

• Screwdriver and wrench sets (to install water heater bypass and remove/reinstall accumulator tank)

• Funnel