Came into the apace last night and found the swamp cooler running and all the windows closed.
Okay, so what this did was sure, the lounge went down to 25c which sounds a lot more enjoyable, however the humidity went way up to 60%, at which point you cancel out the cooler by making it really humid. It was 30 outside but it felt like a muggy 30 inside with the humidity.
I opened all the windows and the front doors (remember we can do that now that we have a latching gate) and after an hour we were up to 26c but we were down to a much more manageable 40% humidity.
If you are going to operate the swamp cooler, PLEASE open windows.