Bumping up to see if anyone knows. I know the pool there is accessible, but I don't know how accessible.
The types of pool accessibilty that Disney pools have are either zero entry pools or bump step pools. As far as I know, there are no pool lifts in any of the pools.
Zero entry pools have a gradual sloped entry into the pool, sort of like a ramp. They are meant to be used with beach wheelchairs (which can go into the water without damage).
Bump (or Medical) steps are a set of steps that begin at wheelchair seat height. They have grab bars along one side. To use them, you can pull a wheelchair up next to the seat, transfer over to the step seat and then, using the bars, you bump down the steps into the pool.
As they have renovated WDW pools, they have added accessibility features. Some pools have bump steps, some have zero entry in addition to the bump steps.