Elder wrote:


Apart from it being a wet and messy(physically and aesthetically) way,
is there any reason why I can't cut off the pipe above the seized stop
tap, get wet while it gushes again and fit a 15mm push on stop tap or
isolator valve to the stub of pipe?


Ive done this on one occasion. (workled on live full pressure flows)
Before the house was in any way finished! And with live hosepipes 100
yards down the garden...

You get VERY wet, but it works