The wet vac hose to the tap worked a treat! Literally took a second to clear what I presume was an airlock. Many thanks for your help and comments. :wink:
Hello all.
Turned the gate valve off from the cold supply in loft yesterday to replace toilet siphon. Back on again after a couple of hours, the cistern filled up nicely but cold bath and basin taps in separate room are only trickling. I've checked the tank for obstructions, turned the gate...