Harry Bloomfield wrote:
It happens that Tim+ formulated :
Which there isnt. Whatever the problem is, it isnt an airlock. The
supply to the taps on the inside work fine.

I agree and suggest it is the none return valve closing and sticking
closed - maybe due to limescale build up. Take is off, strip and clean
it out.


Its barely two months old and we live in a soft water area. I suspect
your right about it sticking though.

Tim

--
Please don't feed the trolls