Hi, A sinkhole appeared last Aug, behind screen wall next to driveway.
No assistance or guidance from local council and Water Corp.
Finding cause is still problem. Contacted few experts but nothing conclusive.
Driveway is liquid limestone, also effected partially.
Found one trades person who water tested and then backfilled and compacted in Sep 2016.
It reappeared in Dec, soil being washed away somewhere.
Water metre on the other side of driveway adjacent to left hand neighbour's fence
sunk in ground.
Reported to Water Corp, it was replaced but no cause found.
Screen brick fence started cracking since Aug, and after last week's heavy rain the crack opened further,
clearly showing the end pillar lost its footing.
I need help if anyone has experienced similar and who did they contacted to resolve the issue. Thanks