I think you have an excellent site here and I have been plowing through it for months checking out all the helpful input.
I am going to be embarking on a small pool project very soon, and because of surrounding restrictions will be making an above ground pool with one vanishing edge. It's a very small pool and whilst being a builder and having no issues with concrete/structure etc, I do have a query about the return water from overflow tank. I read that this water has to be filtered and circulated via it's own pump, independant from the main circulation system. Does this mean a full filtration via a sand tank? or just filtered via the pump's debris catchment basket?
This is I am sure one of a few enquires I'll be making so I would like to thank any who may answer in advance.