23-02-2013, 21:31
I usually pump to the point where I can stay in them for 15 mins. I have to weirdly drink a pint of water to achieve this first stage, had read that advise here or I would never have got started. After those 15 mins I periodically pump untill I fill them over the course of an hour. I do release from time to time as I find it can get too much.