How long does the process take?

First time takes about 2 hrs but after that depending how hydrated you are can take as minimum as 30 min or more I usually take about 40-50 min.

Being hydrated is the biggest factor! It's important to know you've gotta drink the day before, not the day of! Also important is the amount you give. People who give less because of weight are fastest! I heard a technician say the fastest he's seen was 27 minutes but she was giving a small amount because she was small.