A few months ago the cold water tank in the loft started to constantly overflow. We have not had time to look into this but presumably the valve or ball-cock needs adjusting or replacing?
When we went away for a few days we closed off the supply to the tank from the mains to stop it overflowing. When we came back my husband forgot to turn it on again and therefore ended up draining the tank to empty.
He then re-filled it and again it went back to constantly overflowing but now we only have a trickle of water to the upstairs cold water taps.
His theory is that there is sediment in the bottom of the tank which has now, because it was drained to the bottom, worked its way into the pipes and is blocking them, although there is no sign of muck coming through the taps.
[b]Is this right? If so, how do we clear it?
If not right, what else could be wrong?[/b]
Any thoughts and suggestions would be very welcome!