You should be aware that ALL Swimming Pools, Spas, Ponds or Water Features 30cm or more in Depth must now be Registered with the relevant Council. Shortly, they must also ALL have a Certificate of Barrier Compliance. If the Vendor has not already done both of these things, unless there is a Special Condition in the Contract saying that the Vendor will attend to them BEFORE Settlement, the responsibility and any Fines for Non-Compliance fall to you as Purchaser.