The pool kit came from Royal Pools. Which was help full in every step if I had an issue with anything they were very easy to deal with. Pool Krete is the base product used under the liner. Sump pump was only ran until water level was up to the top and backed filled. I cut the hose off long enough and have an extension cord on it that I’ll add a skimmer cover to the deck to cover it in case we need to change the liner in the future. You never know it may work in ten years still. Or atleast we’ll have a line to suck water from.