If you have an air conditioner in your home, you may be wondering how you can evacuate it without a pump. The answer is actually quite simple. All you need is a bucket, a length of hose, and a container to catch the refrigerant.
First, you'll need to turn off your air conditioner and disconnect it from the power source. Next, locate the low pressure side of the unit, which is typically the larger of the two hoses. Place the bucket underneath the hose, and then use the hose to siphon the refrigerant out of the unit. Be sure to catch any drips in the bucket, and once the unit is empty, dispose of the refrigerant properly.
With the unit now empty, you can clean it and perform any necessary maintenance. Once you're finished, reattach the hoses and power on the unit. It should now be working properly.