We just had a 34 foot steel wall pool put in. We are building a feature wall that is 20 feet long. We are using cinder blocks. 2 high. We put a 6 inch deep by 20 ft long footing under the lip of the steel wall. The cinder blocks will sit pretty much right up to the edge of the pool. Leaving about a half inch for the stone face. After putting one row of cinder blocks on I’m worried we are compromising the wall. Are we doing this right?