What is the actual process of cleaning the turbo anyway?
car in air ideally, disconnect down pipe from turbo, put cover in place, stick tube into cover and pump the cleaner into the turbo and leave for 30 minutes.
Every 5 minutes or so you wiggle the acutator to get the vanes moving and start cleaning
After 30 minutes drain the cleaner and repeat the process with the second stage cleaner
Then re-connect downpipe and test - job done