I have posted a lot lately (sorry) in regards to my current pile of issues. But I was hoping someone could toss me some insight on what "could" be happening. After some help and research I thought my pipe (sticking out of ground) was a "well point". So today I bought a transfer pump and ran a hose to its bottom (15 feet). I then ran the pump for several hours. It never stopped flowing, and was pretty crystal clear. After awhile I noticed my pool water levels started dropping. In all over about 4 hours I lost 5 inches of water total. The possible well point never stopped draining. Now I did have a crack I attempted to seal with epoxy before pumping, but I am not sure if it started to leak when the water level was dropping around the shell. OR, if that pipe somehow is tied into the pool plumbing system, and actually draining the pool water directly. Here are a few photos (they might not even help) but I am really curious as to what could possibly be going on.
Pipe with hose: http://i.imgur.com/FJgdcPMl.jpg
Water pumping out: http://i.imgur.com/gc91hP1l.jpg
Thank you so much guys!