Check visibility out A tunnel and check the survey from D tunnel back to the entrance.
single stage, double scooter, the usual gasses for 300, 190, 120, 70, and oxygen.
Rode out A tunnel which had wall to wall vis all the way past D tunnel. On the way we checked L tunnel (clear), F tunnel (clear), D tunnel, and on the way back we checked E tunnel as well as C and B tunnel. Only B is showing any flow. A is siphoning from B on back. Cave is ready for exploration. The line installed by the USDCT was not knotted so we had to survey Exley