After being in the water for a while, getting out of the pool to the full pull of earth’s gravity is tiring.
Have a ledge in the water, that when you sit on, inflates and pushes you up above water level so you can quickly step onto the perimeter of the pool.
Currently, the same amount of water is used each time you flush.
Have a smart toilet that can sense and measure the amount of body waste you deposit in it, and adjust the flushing accordingly.