I am building an new IGP and the screen is one of the few things sub-contracted out by the pool GC. Pool construction has been top notch but now we have gotten to the screen enclosure part and things have halted. The pool deck has been done for weeks and the screen guy keeps pushing enclosure back. Pool company wants to Marcite and fill pool last but not sure why...can they finish the pool and then the guy can put screen up afterwards? Maybe they put ladders or something in empty pool...surely they can add screen enclosures to existing pools and they Marcite open pools so why the order of operation? Any thoughts from the pros?