On 10/10/2019 19:17, John wrote:
How can this happen?


A burst water pipe caused problems that left hundreds without gas in
Wirksworth earlier this week.

More than 900 homes were were affected when water from a burst main entered
the gas network on Tuesday, October 8.

Water flow undermined support for the gas pipe, it sagged and broke open
at a joint. I doubt if much (any) water would get into the gas pipe at
least until the gas pressure was turned off to prevent an explosion.

--
Regards,
Martin Brown