When I flushed my radiator, I have noticed that there is lots of sludge in the water.
In order to remove the sludge from the heating system, I would like to
- Turn off the Worcester gas boiler
- Open the pressure valve of the boiler so that water flows into the system
- Open the radiator drain valve to let the water flow until it is clear of sludge
Please suggest if there will be any issue in the above process of draining the water continuously while pressuring the system through the boiler.
I have searched online and couldn't find anyone doing this method of flushing and wondering if it will cause any problem to the boiler.