Trident Calibration mL usage?

[SWherrey]

Trying to figure out how many ml the calibration uses. I’m using fauna marine calibration fluid but wouldn’t want to waste the whole thing if it uses way less. Would anyone happen to know?

 

[MERKEY]

I use a tall shot glass so I can see the calibration fluid and also so I know the line isn't hitting the bottom or sides of the calibration container.

The shot glass holds 50ml. It usually has a little left in it so I would say 40ml of solution to be safe.

I can measure next time I calibrate tho