can anyone tell me the best way to drain down a sealed system?i attached a hose and opened the drain valve water started flowing but came to a stop after a short while. opened a bleed valve on the highest rad and water still came out so still full.
i have just installed a sealad system.the boiler heats up the pumps running but hot water is not flowing.1.4 bar pressure rads all bled can anyone enlighten me on whats wrong?
