Some contractors working in Perth around fibreglass and concrete pools are unqualified to do works such as pencil compacting. Please be aware using unprofessional contractors may void the warranty on your pools shell and are not recommended by the major pool companys for obvious reasons.
Before organising any works around your pool we recommend contacting your pool company and make sure they recommend only professionals who will fully guarantee their work and are willing to provide independent customer references.
Expensive Results of Poor Compaction
The pictures above illustrates what can happen if an unqualified contractor compacts a pool. The shallow end of the pool has sunk by 30mm creating an uneven look when the pool is full. It now requires supports under the edgebeam to jack the shell to the correct height.