About this 3D model
I printed out Simon's design and they worked really well. The only problem was that the 180 degree view also made sure that the decking was wet and the fence got a good soaking as well. I have a small back garden so narrowing spray down from 180 to 90 degree's was needed. Whilst I was at it, I tinkered around and made a left and right handed 1 coupler version as well.