I am having some inconsistencies with the Agras spray system calibration. I have followed the instructions to the letter and i have been using 5l per pump (as recommended). What i am finding, is that after calibration is complete, and air check is done, i add exactly 10l to the tank, then push the spray button and wait for the tank to empty, then on the screen i check the spray amount total. Each time i repeat this process i am getting a differing result 8.8l, 9.6l and 9.0l of total spray. I have recalibrated 3 times now to try and eliminate human error, but each time a varying result. Has anyone else struck this? I am certain there is no air remaining in the system that could cause these mixed results.

I am having some inconsistencies with the Agras spray system calibration. I have followed the instructions to the letter and i have been using 5l per pump (as recommended). What i am finding, is that after calibration is complete, and air check is done, i add exactly 10l to the tank, then push the spray button and wait for the tank to empty, then on the screen i check the spray amount total. Each time i repeat this process i am getting a differing result 8.8l, 9.6l and 9.0l of total spray. I have recalibrated 3 times now to try and eliminate human error, but each time a varying result. Has anyone else struck this? I am certain there is no air remaining in the system that could cause these mixed results.