Hello , I have a 24' agp and have a leaking or slightly streaming return fitting. The pool is full and I was hoping to replace it quick with the water still at its filled level. I have been told it is possible and they have done it , and others that say it needs to be drained down 2" below the return fitting (bulkhead). I am receiving the new sp-1023 tomorrow and it comes complete with the 2 rubber gaskets and fiber gasket. I was hoping to loosen the original and quickly make the transfer with the new piece. Has and can this be done or am I looking for problems doing this. Just opened the pool and brought the water level up to find the leak. Thanks in advance for any and all replies.