Kinda desperate for a solution to the sheer shit show I'm facing.

I work in a court in the UK as the maintenance guy/handyman, you can probably guess who I work for from that. I have a job where the isolation valve on a pipe is leaking. Fairly badly in the closed position and a steady stream in the open position, it's already causing damage to the basement and slowly flooding it.

There's no isolation that I can find and none of the hmcts gremlins in the office can give me a plan for the piping. I tried to install a aladdin isolator onto the pipe but while it installed fine something bound up and it's pretty much useless.

Now they want me to install a standard 15mm isolation valve onto a live pipe with no backup plan, I'm the only person permanently on site so all the responsibility, consequences and shouting end squarely with me.

I'm not a qualified plumber, is there anything else I can try or should I give them the offer of "hire a plumber from the contractor list or take my resignation with immediate effect"?

Go to Google maps.

Turn on street view, type in India.

You can have as many attempts as you want. If you find a street in the 360 street view that doesn't have garbage, rubble or shit in it, you win.

Ps. I think it's actually impossible to win.