I have suspected that it was the amount of sweating I did. I use to get bad gout attacks if I went running in the hot summer and lost alot of water. So, for the last few years in summer I have been drinking 2liters of water a day. That seems to have helped.
I hope other people can add to this thread, because I would be interested in hearing how others feel exercise and gout are connected.
Good luck with things.