Not me, Scotty. Some of these have been in the same base for 5 years. 2 more, and I will repot, and make divisions. I grow in Rubbermaid plastic dishpans, and have kept them under water for as long as I can remember. Many folks dry theirs down for winter, and let dormancy do its thing. Many also suffer losses during this time. I think fungus' like the damp conditions, and have a merry time destroying the rhizomes during the sleeping season.
I use tannic acid in the spring, and white vinegar to increase soil acid, and simply keep them submerged. They respond VERY well to this treatment. I have a whole lot of buds coming up right now, and they are going to be subjected to the tannic acid/vinegar treatment on March 1st. Tannic treatment also helps red form s. flava's get the red color, and retain it. Tannins in the water also inhibit algae growth.