Which way does the mains flow on this boundary box?

[Renishawphil]

Can anyone tell me which way the mains flow please? i have a feeling its to the left of the picture but if anyone could confirm that would be much appreciated

I am trying to work out which is the service pipe to the house . Not very straightforward because of the pipe arrangement. I am asking as I can't find were it meets the under ground copper pipe

Thanks in advance

 

[ShaunCorbs]

Yes to the left

Stop tap
Meter connection/ point
Then out to your property