A side issue: drinking water. The mains water :should’ be good to drink but is getting heated due to the long run on the outside of the wall. Also we can’t be sure that other arches have proper anti-syphon measures in place…in fact you can bet they don’t. So: drink at your own risk?
Bottled water is one of the maddest of modern inventions IMHO…so what’s the answer?
I wondered about that…and I recall it got capped off without a valve. Which was a bit of a fail. Just a detail that got missed in the rush of work on the floor.
At least the other supply isn’t getting warmed up every day.
I’ll look into the this. It maybe that the risk from water syphoning back into mains pipes is not significant?