I need to drain my sealed central heating system which is attached to a combi boiler in order to move a radiator.
I understand that I can use the drain cock located on a pipe beneath the boiler by switching of the power and water supply to the boiler, connecting a hose to the drain cock, and then opening the drain cock.
However, the drain cock appears to be higher than the level of the radiator valves and I am worried that once the system is drained, when I come to disconnect the radiator and remove the valves I'll have water gushing out of the top of the exposed copper pipe which will be hard to collect.
I thought that maybe I could connect a pump (e.g. drill powered water pump) to the end of a hose attached to the drain cock to suck out as much water as possible from the system.
Will this work or is this a bad idea? Is there any other way of draining the water out of the system?
I understand that I can use the drain cock located on a pipe beneath the boiler by switching of the power and water supply to the boiler, connecting a hose to the drain cock, and then opening the drain cock.
However, the drain cock appears to be higher than the level of the radiator valves and I am worried that once the system is drained, when I come to disconnect the radiator and remove the valves I'll have water gushing out of the top of the exposed copper pipe which will be hard to collect.
I thought that maybe I could connect a pump (e.g. drill powered water pump) to the end of a hose attached to the drain cock to suck out as much water as possible from the system.
Will this work or is this a bad idea? Is there any other way of draining the water out of the system?