Ok, so on advice of everyone here (yes, ultimately it was my decision) I started to remove the sprinkler head and line. I tried not to disturb too much area to prevent settling later on. I ran into one HUGE problem. As soon as I found the sprinkler head and had a hole dug, ground water started pouring into the hole. I figured it was no big deal, but as I trenced further the water just kept filling in making removal of this line impossible.
I am concerned because the ground is so wet. As soon as they start to dig to level the ground they are going to have the same problem. How can we build a pool on this mushy clay soil? Has anyone in a northern climate ever done this?
I'm worried to that the line I pulled out is going to cause a crater in the pool. We packed it down the best we can, but the hole was filled with water. Not like we could really tamp it.
I just feel like my dream pool is disappearing. The ground is just too wet to imagine supporting all the weight of a pool.