So with the water in I am now lying the electrical and last of all, the telecoms gain. the bottom picture shows the me laying out the gaine (green) around the garden (including around trees or plant pots) in order to pull the cable through (no way this stuff can be pushed!). The white lines are the nylon pulling lines that come pre-installed inside the gaine. Went in pretty easily actually.
The gaine in the trenches looks a bit of a mess at the moment but just before backfilling I will separate the telecoms from the electrical cable to avoid magnetic and other interference occurring. Have to admit the colour coded gaines help for this bit.