Is there a chart where I can find what tips to use for the dilution I’m trying to get? I have an existing turtle valve that is installed and I’m trying to get to a dilution of 240:1. I’m hesitant to use the tiny pink tip just by itselffor fear of clogging all the time (pump rooms get dusty and dirty). I’d like to run two somewhat larger tips in the turtle valve to get to where I want to be. Does anyone have an idea where I could look or have an answer for me?