Mains water isolation

[swampydrill]

I live in old victorian property, can't seem to find isolation valve anywhere. I looked at the mains isolation and i noticed there is no handle on the valve so hardly something to to turn off quickly. There is also a blue item next to it, not sure what that is, have put a picture.

 

[terryplumb]

think you need to clear away some of the sand /earth or whatever it is that is covering what lies below. then it should become clearer how to isolate the supply to your premises. once isolated you can then fit an internal stopcock ,or at least explore the possibilities .