How to swim in 90° water???

Umm, yeah, the title pretty much sums up my first-world problem here. Since about the middle of the summer of this year the gym pool I swim at has been running at 89-90° without fail. I've been told that the problem will be fixed as soon as they budget for the piece that's causing the problem (something needs to be replaced with the thermostat I believe). Might happen this month, maybe by the end of the year, who knows. My swimming has decreased to primarily drill-work with the occasional sprint set thrown in, resulting in roughly 1000-2000yds per session, 2-3 sessions per week. I can do distances from 25-125 ok enough, but anything longer is really draining. And even though I'm a lazy sprinter, I do like to swim longer distances occasionally to combat boredom. I guess my question is, has anyone had to deal with 'training' in such warm water, and what sorts of sets did you do? Suggestions, other than 'find a different pool,' would be appreciated. I've got access to a cooler pool (78-80°) on three days of the week for approx 1 hr, which I'll be doing, but the cooler pool is 23yds as opposed to 25, and I'd also like to swim more than 3x a week. Now if you'll excuse me, my world's coming to an end because my cell phone won't hold a charge as long as I think it should… :bliss: