Love this pool (and pump) except for the one downside (hence not the full 5 stars)...
The trouble is the height from the ground of the water outlet hole (on the side): once the water level falls below this thus no longer leaks out gravitationally, the volume of the remaining water is still too great, meaning too heavy to flip the pool over like you can smaller pools in order to empty out the remainder, or even to lift momentarily to enable you to prop up the opposite side of the pool using something bulky but non-sharp underneath (I wanted to use a giant beanbag). I imagine this would be do-able were there two of you, but one person? Not a chance.
What I did in the end was sit reading beside the pool on a chair (because it took a whole hour +) whilst pressing my foot gently but firmly down and into the side of the pool fabric just below the outlet hole, just enough to manoeuvre the hole down lower than the remaining water level. Once that ceased working, THEN it was just about light enough to flip over, albeit initially for the first few minutes, as I stood there with the still-heavy side lifted, I had to repeatedly bump my thigh and hip against the pool to cause 'tidal waves' to spill over the opposite side.
What a palava (I was cream-crackered by the end of it)! For this reason, I highly recommend either [a] you ensure two of you do it, b] buy an electric drainage pump (or a spare length of rubber hose so that you can siphon it out), or [c] use chlorine or (which is what I then did) other water treatment solutions to prevent having to change the water mid-season. Better yet would be the point-of-sale blurb advising the customer of these further purchase recommendations to begin with.
You can't 'cheat', either, by not filling the pool to capacity in the first place because otherwise the inlet/outlet holes for the electric pump get covered up by the sagging pool sides immediately above them and just below the inflatable rim (- I tried that, meh!).
Other than that, it's a superb, really robust, roomy and attractive pool! Plus if there's only one of you in it, it's even just deep enough to float there on your back or to suspend yourself by resting your head gently atop the inflated rim. Overall, then, it gets a thumbs-up!