As I said before, I put myself through college with pool construction and service, and know very well how much work they can be and how much it can cost. If this one was just a little bit worse, it would be very close to a deal breaker. Then I realized, I have a tractor with a front end loader. If it turns into that much of a money pit, I'll fill it with crusher run and build a tractor shed on top of it.
The missus would not be very happy with me if she had to swim in the pond, though. She lived within a rock's throw from Spencer Gulf in Port Pirie, but NEVER went swimming there. Two reasons: 1.) She couldn't see the bottom nor anything between the surface and the bottom. 2.) Spencer Gulf is Jaws' living room. The local museum had a 6-meter great white (Shaka) in it, which was caught very near Port Pirie.
I'd much rather have a nice workshop/tractor shed than a pool. If I ain't in it doing something, it doesn't cost anything. A pool costs money year round. Costs a lot more in the summer, but to keep the plumbing from freezing and the water from going green, have to run the pump year round and move the chemicals. Fortunately,, the pool (and a few outside security lights) has it's own power meter. I can show exactly how much more it will cost to run. That pool is gonna be my bargaining chip for a LOT of things, LOL.