those are both nice sprayers. i have one with a pressure controller and gauge, but i never use pressure to adjust spray volume on the fly. I set and leave it at 40 psi. it’s best to treat pressure as a constant rather than a variable in your sprayer calibration formula. try to figure out a constant speed that you can maintain across the entire acre and calibrate your sprayer to that speed. for reference, i spray at about 2.5 mph in a gently sloping hay field.Hi all. New to the forum. I have a 1023r and recently purchased a ST sprayer from my local JD dealer. I conveyed that main criteria were: 1) the need for a pressure controller based on some assumptions below, and 2) a boom. I was directed to the LP20840. When I finally got around to installation, I discovered my model does not have the pressure controller. That would be the LP22886. They offered to swap and charge me the difference in price. The upgrade would be $965+300 (for the optional boom) versus the version I have at $860 (includes boom). So the upgrade would be another $400. Disappointing, since probably I would have chosen an off-brand instead of $1265. But now I'm stuck...expensive version that does what (I think) I need, or a less expensive version that does not.
I maintain ~1 acre with some moderately steep hills and many overlapping turns. My searches strongly suggested having pressure control to adjust the amount of chemical on the fly to prevent over-applying fertilizer or weed killer in overlapping areas. Also, I will need to adjust my speed on sloped areas. Without the pressure controller, I cannot compensate.
Did I come to the correct conclusion the first time? Looking for recommendations. FYI, I'm not an experienced tractor driver, so that might play into things.
so…. fill up your tank and drive the property until you have a feel for a speed that you can maintain across all of it. then turn on the sprayer and do a trial run to see how far a tank goes. once you have done that, you have resolved all of your variables. now you can simply adjust the amount of product you use based on how far your 45 gallons of water went at your target speed. either sprayer will work. with one, you get to set the pressure, and with the other, it is fixed rather than adjustable. my preference would be to upgrade, but for no reason other than that’s just me.
I hope that makes sense.
be careful with all that weight sloshing around, especially when turning on a slope. too slow is better than too fast!