Emptying Water Lines

An air compressor can be used to blow out water lines - YT video [1]. The fittings required are compressor fitting, bushing, hose adapter. [2]

This walk-through shows all the points one must take care of in a typical house. Toilet, sinks, dishwasher, shower, drains, water heater, pressure tank. Connection can be made through the washer hose connections. Do one water source at a time. Repeat. Use antifreeze at the end. [3]