I fully agree with Jeff and Bill.
Be careful this is a boat in disguise. Be sure honey is going to use it to make it worth the cost.
Consider the running cost its real. You guys in the States pay more for electricity than we do up here. This is a fair size motor to pump and circulate the water even on a cycle it adds to the bill and its never ending until you either sell or fill it in. Same with the chemicals.
I had pools in SA most of my adult life.
Make sure to check out if the pump is working and the pipes aint leaking. If there is damage it could be a mess to sort out with what looks like buried pipes.
Check out the filter, you might only need new sand in it thats no biggie if its a sand filter.
There are also chlorinators that make life much easier on the cost and management of the pool water.
Consider how long a season you are going to get relative to use. In Canada its pretty short by what i was used to (my neighbor has a pool not the NN the good guy other side). He has gas heating to extend the season.
My observations were first year lots of use total novelty. Ever since then use has decresed. Got the shock of his life on the running costs especially when his wife left the heater running. Mistakes happen.
Pool service is the way to go but adds to the monthly bill for ever. The thing is they do this all the time so its not a learning curve for them.
BTW up here if you look at it from resale point of view it dont add a great deal of value to the property. Equivalent money spent on kitchen or bathroom would provide way better return.
Also on the resale side it narrows down or opens up the numbers of buyers depending on your belief. I personally dont believe everybody wants a pool.
I would not worry about the state of the water in this one that is fixable look more to check out the weir and get the pump to run before you buy even if you have to connect it to a generator assuming the electricity to the property is cut off.
Remember small kids and safety you might have to incurr some cost for fencing if you have any likelyhood of that event.
Would have a pool again if the property allowed it and i could see my way through the costs but at this stage of my life i think i would rather put the extra into a retiremet saving and swim in a local lake or public facility or even the neighbors pool.