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| For 1:
- Pretty much pressure with AIM is a tool. Pick a pressure that'll give you that balance of coverage and drift reduction that you find suitable. For some nozzles, this might be like 40PSI, for some, it might be around 60PSI.
- Kinda try pick a droplet size and match the pressure to get there.
If using TIP WIZARD, a few cheat code droplet sizes that I find useful:
PRE-WORK [400-450µ+] - If doing pre-work (mainly systemic modes of action), you might be targetting around 400µ in ideal conditions. If you are more drift sensitive, or it is soil-applied herbicide, you might be looking at 450µ. CAVEAT: Make sure you check your chem. label, as some of the new formulations will have a 'white-list' of nozzles that are allowed to be used.
POST-WORK [330-350µ+] - This is more for stuff like straight Glufosinate that is contact-based and heavily needing coverage to work. Less drift sensitivity than systemic work, but still something you should plan to be able to get to like 400µ with the same nozzle.
At high rates (15-20GPA) at high enough speeds, expect that a single nozzle might not be able to get you to that fine of a spray, and there would be value in splitting into two tips (either double-down pulsing, or 1x PWM nozzle + 1x non-PWM nozzle spraying simultaneously)
FUNGICIDES [330µ] - Generally, there is less drift sensitivity for fungicide applications, BUT it is usually also an expensive regimen to spray, so its best to keep it in your crop (instead of evaporating, blowing off-target). For high-rate applications, the same double-down type spraying can also be greatly beneficial in breaking up a single LARGE nozzle that'd produce a lot of coarser sprays, splitting it into two more meaningful nozzles (often you'd already have one or two of these nozzles on hand from other applications)
Hope that gives you a bit of an idea. Usually I'd go more for a droplet size than picking a pressure because of the pressure itself.
For 2;
Generally the solenoid MFGs will suggest against running 32 through the solenoid. Probably 50/50 with guys having grief with it gumming up the soleonids after sitting, and others that havent had much grief.
It is best to run it through the stacked nozzle body on your sprayer to isolate it from your solenoid.
If there is enough value for you to run it through AIM (turn comp, individual nozzle control, etc), then you can do it, but it might wear the stainless plated parts out quicker, and might result in washing the poppets out with soapy water if it sits and gums up.
Lemme know if you have any questions,
-Lucas
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Aim command questions
