There's always the disasters in plumbing DD.
I'm hoping that all mine are behind me now (with just 2 more years to go in the trade before I can retire).
I'd weighed up the risk first though.
I was all alone in a closed community center (due to the virus), so no one was ever going to know if I'd had a flood or not!
I didn't know where the main stop is located in the building (still don't) and also knew it would be a very large storage tank to empty even if I did.
Plus god knows what air lock problems I could have been left with from doing a full system drain down.
Had the freeze spray not worked or not held long enough?
The main reason I chose the hacksaw to cut the pipe with was I knew that a spurt of water from a tiny hacksaw nick wouldn't cause much damage other than a frantic search for the elusive mains stop tap (It's probably located in a locked cupboard that only a certain caretaker who's since emigrated to Australia has the key for
)!
Glad you liked the video, it was a bit different I thought.
Everyone does plumbing differently.
Tappy,