All day pump?

Has anyone pumped all day long with a very low pressure? I think I might be willing to try it and see how it goes.

I never did, the longest session I could ever do was about 3 hours max, However I have spoken too a fella in the US who told me that on some weekends he has been able to pump for up to 8 hrs for one particular session.

He is however a pumper with about 15 years experience and knew a thing or two about pumping.

Yes I do .But I pump for 2- 6hrs nearly every night,while I am asleep.