Turn off the main shutoff.
Open all radiator valves and remove the air escape valved from the radiators on the top floor of your house. Drain your boiler by using an air compressor to blow out the water. Once this is completed you need to open the drain valve on the main supply line.
Shut of the heat source running to your hot water heater.
Flush all interior and exterior faucets and flush toilets.
Remove all water from the toilet bowls and pour a mixture of antifreeze and water into the bowls, traps of sinks, showers and bathtubs. Because sewer gases can rise from the traps do not drain the lines.
Drain your water heater.
Switch off your pump and drain it along with all above ground pump lines and the tank if you have a well that supplies your water.