How long do you pump for?

[Mr. Destroyer]

I know that regular work is the most important. And that pumping should not be painful, at most a slight pulling sensation in the abdomen. I've developed a routine for myself, and I've been working steadily for two weeks. Of course, when I feel like it, I take a rest day. Currently I pump 1x20 minutes a day, then I pull my anus apart and push hard a few times. 
You guys who are more experienced than I am, how long do you recommend pumping for at a time? Should I stick to 20 minutes, or should I gradually, slowly pump for 1 hour?

[Rosebutt]

Pumping is, like everything else concerning ass play, is very subjective. What works for one may not work for another. That’s what makes play so fun. The experimenting is the fun! Just take your time and have fun!

[rileyyy]

10 minutes at most. otherwise my prolapse starts to feel a little weird with all the blood running out of it.

Edited November 19 by rileyyy