Hi,
I drained our vented system yesterday to fit new valves to bathroom radiator. When draining I noticed the F&E tank did not empty, I had the supply off and all rad bleeds open, the rest of system emptied. When I try to fill back up I can't. I tried bleeding the rads but although 3 of 8 hissed for a minute or 2 no water ever appears. Am bouncing between an airlock and a blockage, fact that the tank doesn't empty suggests the latter but I don't know where to look for the blockage. Some have suggested the magnet thing but I don't pick anything up with that. Our cold from the F&E tank comes down and joins next to the pump but also next to some bell type thing that I have no idea what it is.
I drained our vented system yesterday to fit new valves to bathroom radiator. When draining I noticed the F&E tank did not empty, I had the supply off and all rad bleeds open, the rest of system emptied. When I try to fill back up I can't. I tried bleeding the rads but although 3 of 8 hissed for a minute or 2 no water ever appears. Am bouncing between an airlock and a blockage, fact that the tank doesn't empty suggests the latter but I don't know where to look for the blockage. Some have suggested the magnet thing but I don't pick anything up with that. Our cold from the F&E tank comes down and joins next to the pump but also next to some bell type thing that I have no idea what it is.