Hi Jim
Have some knowledge although limited. There is a small bag stuck comfortably to your skin where the tube comes out so that the urine automatically drains into it. There will more likely be a small tap at the base of the bag so that you can empty it easily when necessary.The bag only needs changing daily/ alternate days.
I'm sure if you ask to speak to the urology specialist nurse she will be able to give more help.
Hope this info helps to some degree.
Lesley x