Leaking home radiator can cost you extra money, both in energy bills and potential damage to your home. Water is circulated through radiators in a home heating system after being heated by a boiler. The heated water is then pumped through pipes and into radiators, where it warms the air in the room. There are a number of points around a radiator where it could possibly spring a leak. Take time to check your radiators over for problems and save yourself from high energy bills and unnecessary home repairs.
Turn off the central boiler on the radiator system. Most boilers will have an "On/Off" switch attached somewhere to the boiler.
Place a bowl underneath the radiator drain valve. These are usually located on the inlet side of the radiator. Loosen the drain valve and let the water inside the radiator drain into the bowl.