Good luck to you. I am sure they will have you do it with a plunger, just know there is a easier and better way. Just put the plastic syrynge in, and pour the liquid in. Gravity will work, and the liquid will flow in naturally. My husband says it is do much more comfortable doing it that way. When he was in the hospital, none of the nurses, except one, had ever done it that way. It is easier for you that way too