Do I have a venturi or a diverter? Megan June 12, 2018 03:27 Updated Follow You will be able to see this if you look down the part your valve has been taken off of. If the piping goes straight down it will be a venturi. If the piping goes into a ' t ' shape it will be a diverter. Related articles What is a Micron Spa Filter? Comments 0 comments Article is closed for comments.