A grey day, cooler but the wind has dropped. I was a little later to the pool and Alfonso had done four lengths before I got in. Aaron was trying to clean the pool today, disturbing the silt and detritus on the bottom making thick clouds of debris float about in the water, visability was reduced. After a few fast lengths I kept pace with Alfonso, he has a tendancy to veer to the right so we eventually ended up past the middle of the pool in the side you're not supposed to swim in and we were told to move back over. The water seemed warm and the temperature was given as 15ºC but I didn't check with David, I went on to do twenty two lengths.