Long time lurker, and have been through a good few threads looking for ideas and information when it comes time to start construction. Most everything will be done by myself and a friend, aside from the pouring of the base if we go that route. The plan is for the pool to be mainly above ground, due to the location and design. We are going to go down about a foot, and do the rest above ground due to rock and draining issues. The varying depths will follow the slope we will be building on, and the exterior of the block will be imestoned to mimic a old cistern. This will also not be a sure or rectangle design, but more of a kidney-ish shape, and will be around 25x40, give or take. So here are the first round of my questions:
With the cinder block, rebar, cement, and limestone, will there be enough strength to support the load of the water?
Does the cement base need to be poured before the walls are erecred, or can the walls be used as a type of form?
And if I am doing a liner, opposed to a coating or tile of some sort, does there necessarily need to be a cement base?