Neither the Building Act 2011 nor the Building Regulations 2012 define or reference the decommissioning of swimming pools and or spas. Both these statutory documents however, define a swimming pool as that defined in BCA Volume 1 Part A1.
The BCA defines a swimming pool as: any excavation or structure containing water and principally used, or that is designed, manufactured or adopted to be principally used for swimming, wading, or the like, including a bath or wading pool, or spa. And;
AS1926.1-2012 defines a swimming pool as: any structure containing water to a depth greater than 300mm and used primarily for swimming, wading, paddling or the like, including a bathing or wading pool, or spa pool.
In an ideal world when the swimming pool or spa is no longer wanted they would be 100% removed from site either by deflating, dismantling, excavating and lifting out, or complete demolition. Any demolition material removed from site and taken to an approved disposal site. The excavation filled with soil endemic to the site and compacted in layers.
The reality is that many below ground pools get buried thus potentially creating future development problems.
By definition decommissioning would be removing aspects that make the structure a swimming pool, such as complete removal, remove its ability to contain more than 300mm of water, remove the access, and remove any filtration system. The main consideration is the inability to hold water.
The following are examples of the main types of swimming pools and how best to decommission:
Above Ground Pools Installed Below Ground
Below Ground Concrete or Fibreglass Pools
Burying the Pool
Complete Removal of the Pool
Decommissioned pool and the shell still remains and not filled with soil:
Burying the Pool Shell: