When in Florida our pool was kept at 90F in summer/fall [solar heated] and hot tub adjacent was 105F, all too hot for me, but good for arthritic joints.
Since everything is bone dry and rain is expected I have been unearthing the rhizomes that have sunk down. Soil is too hard to raise them with a garden fork so digging small drainage channels. I tend to plant high in the clay soil to minimize rot from soaking them, so it's hard to believe that so far I have found 62 clumps that have sunk into this clay requiring the diversion channels to avoid winter wet soaking.