hi, im digging under the footings to under pin, but there is an earthing rod in place on part of the the excavation site. im only going down roughly 80cm, can i dig around the rod or will i have to move, and if so can i do this myself or call in the electrician?
The earthing rod must be fully buried when you are done.
If you are excavating around the earthing rod and the area ill not be backfilled, either pound the rod down nearly flush with the new ground level, or move the rod somewhere else and drive it. (In the U.S. two rods at least 6 feet apart are generally needed to meet code.
You can do it yourself. If you are backfilling around the rod, tamping of the earth is better.
Stop wasting time re-adjusting the pattern. Have several lawn sprinklers, one for each pattern.