If the installation is non-conforming or potentially dangerous you should explain the concern to the owner or lessee and advise of the obligation to maintain and operate a gas installation in a safe manner.  If the installation is immediately dangerous, explain the dangers to the owner and, if the owner does not allow you to isolate the gas or fix the problem, immediately report the matter to SAGA via Non-Conformance Report on www.sagas.co.za. and telephonic on (011 431 2016 / 011 476 4403). You should also advise the owner or lessee to notify their gas supplier.