Thanks for you reply, but I think you misunderstood my question. I read the warning and was scared to push the tip in too far. I do not want to do more damage that good. How can I set up the board so that this does not happen? Am I supposed to make the tip(that inserts into anus) go through the 3 inch tube and TOUCH the 6 foot tube? I mean is the 6 foot tube touching the tip that inserts into anus when properly assembled or is there a space from the 3 inch tube?