I've had a phone call from Welsh Water today warning that they need to drain off some of the Carno reservoir today (12th Dec) and/or later this week, and that nobody should go into adit or near the adit portal for safety reasons.

Cavers currently don't have official access to Carno Adit any more, so there should be nobody in or near there, but you never know...

Stuart France
Cambrian Caving Council