How To Drain Radiator. Place a drain pan under the block drain hole plug. When youre draining the radiator you dont want to get scalded by any water so this is an important step.
Wearing gloves and safety glasses carefully remove the drain plug at the bottom of the radiator to allow the fluid to drain into the pan. To flush a radiator start by draining all of the old antifreeze in the radiator into a drainage pan. You can also drain the boiler into the garden.
When youre draining the radiator you dont want to get scalded by any water so this is an important step.
Open the drain valve by turning it counter-clockwise. How to Drain a Radiator Turn off all power to the boiler. To flush a radiator start by draining all of the old antifreeze in the radiator into a drainage pan. Locate the radiators drain valve on the bottom of the radiator.
