Not sure if its called " shutoff water valve" in english to be completely honest..
I want to change qué tap in the bathroom and I cannot find the main tap to close the water before I get down to work. Would you know where this is usually located?
Same as above - looked and looked and looked for one in the kitchen, then the landlord dropped in to show me that it was under a silver cap on the pipe....
The ones in my workplace are also under a cover and you need a screwdriver to adjust them.
The ones in my home country are generally full-turn tap handles - impossible to miss!
And in our basement, the tap and pipes are so complex, I would certainly not touch them !