Section 70A(9) in The Rajasthan Distilleries Rules, 1977
(9)Each cask/vat deposited in the warehouse must be closed with a bung of hard wood, fitted flush with the outside of the bung stave. The licensee may, in his discretion, insert a spigot into the hard wood bung, to serve as a safety valve.Cask/vats must be so arranged in the warehouse as to allow easy access to them, in order that a correct account of their concents may be taken at any time and leakages may be readily discovered.