Cleaning and Washing Canvas

[kristimitch]

We recently purchased a 99 Jayco Heritage Laurel.  This is our first pop up and got a good deal considering it needs some tlc.  Structurally it is very sound, but it needs a good cleaning.  I read all of the threads on removing mildew and washing canvas.  It was extremely helpful.  However, many people mention washing with woolite or other cleaners.  Maybe this is a dumb question, but how do you "wash" the canvas?  If I spray on the woolite, how do I rinse it out/off without soaking the inside of my camper?  
Any other adviced is appreciated.  We are new to this and I'm sure I'll be back with many other questions.
Thanks!

[pup]

I'm no expert on canvas, but I can tell you what worked for us.
 
 Our canvas was really, really mildewed when we got the camper. I decided that since there was a roof leak and the camper needed to be cleaned, repaired and dried out anyway I would just give the canvas a really good cleaning and deal with the water afterwards.

 We pulled the bunk ends in and my girlfriend held the canvas out away from the camper while I washed it from the inside. Washing it outside was easy , just let the canvas hang down outside and rinse away.

 There really wasn't much water inside except on the bunk ends. We left the camper open all day to dry it up after wiping out the worst.

 A helper is definately a plus here - we also had a pressure washer set on low for the bad stains. There are still some that can be seen, but they are much better than before!