Good question, Shelly!
We don't have any rentals with pools, and, due to liability concerns, we don't plan to acquire any. There are enough other challenges in life without unnecessarily inviting this one. In my opinion, there's a much bigger downside to owning a rent house with a pool than there is an upside. As long as there are plenty of opportunities to buy rent houses without pools, and there are, we will continue focus on those.
Even if you have liability insurance, which every rental property owner should, do you want to have to deal with the hassle, etc. if a claim is filed; particularly if a tragic loss of life is involved? I most certainly do not.
Beyond the liability issue, consider that it may also be harder to rent a property with a pool to a young family with little kids. There are lots of young mothers (and fathers) who are very concerned about accidental drownings who will not even consider renting a house with a pool.
Thanks,
Robin