A low-tech choice for changing pool depth is to use a platform/trestle construction that sits on the pool floor and may be rapidly removed or changed as wanted. These detachable floors are manufactured from an ABS-grated platform and a stainless-steel supporting trestle. Platforms can be utilized collectively to cowl small areas, but sufficient of them can also cover the complete pool... https://mcneil-moesgaard-3.mdwrite.net/steel-pools-steel-pool-walls-kits-and-packages