greene,
We have an in-ground pool and have had it 20 plus years. WB takes
care of all the maintenance. We never had to have water brought in because he lets rainwater do the replenishing. A pool is
especially sweet this summer due to extra long, hot periods. But the time element is consuming; we're generally in there two hours every afternoon. I have an umbrella chair and float around, sometimes even fall asleep bouncing over the waves WB creates.

As far as maintenance is concerned, you can learn just about everything these days via the Internet.
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https://www.amazon.com/author/bonnie.mill-lemke
https://kdp.amazon.com/en_US/bookshelf