I keep the hose on the tube, I just take it off the pump. I got the same package except skipped out on the DVD. You need to pull the hose off of the pump (It is kind of stuck on pretty well but just keep working at it until its off). I used my fingernails and kept trying to get under it and slowly but surely it came off, nothing broken, so don’t worry It’s not attached with glue or anything, but still be careful. Its well worth it.
I put really warm water on in the shower and after I warm up I put on some lube and start pumping. I’ll suck into the tube until I get a right level of expansion and either hold the pressure in with my finger, or put something in the way of the tube. Then I angle the cylinder under the hot water to keep heat on it. What I have been doing recently is catching hot water in my mouth and putting that into the cylinder through the hose and then tilting the cylinder upwards so I can pump back up and suck only the air out. Try it and see if you like it, I don’t ever want to be caught by my roommate while pumping (almost happened) and since I take it you’re in a dorm also, I think shower pumping is ideal. I cant wait to go home and do it in my hot tub (discretely)!