As many posts as there are about being done with pools, tells me 1: they know nothing about autists. 2: we need to keep looking for pools.
A pool that is used for a couple days in a basement and then drained….isn't actually being used.
It would take that long to heat up if it had a heater. Takes me to my next question. It's in a basement, no sun light. Did it even have a heater?