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Calibrating a Sprayer
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<blockquote data-quote="nwsg76" data-source="post: 5659949" data-attributes="member: 7241"><p>Sprayer calibration is the most important thing you can do if spraying. Takes only a few minutes to do. It is simple. Calibrate and use the correct rates will really help with plants becoming resistant to chemicals. Re Calibrate occasionally as needed. </p><p>If using a tractor, it is simple. The methods mentioned are great. </p><p> My main tractor at 2nd gear, 1600 rpm, puts out 13 gallons of water. Change gears to 3rd and 1600 rpm, puts out 9 gallons of water. Speed difference is less than 2 mph. If I change rpm to 2200 rpm, 2nd gear output increases to 17 gallons of water. Eyeballing is not good enough when spraying certain chemicals in higher concentration. Spraying escort at 2 oz per acre and you go over it twice is a disaster. </p><p></p><p> If using an atv or utv....more difficult because it is really hard to control speed accurately and consistently. </p><p>Pressure regulator is your friend to help.</p></blockquote><p></p>
[QUOTE="nwsg76, post: 5659949, member: 7241"] Sprayer calibration is the most important thing you can do if spraying. Takes only a few minutes to do. It is simple. Calibrate and use the correct rates will really help with plants becoming resistant to chemicals. Re Calibrate occasionally as needed. If using a tractor, it is simple. The methods mentioned are great. My main tractor at 2nd gear, 1600 rpm, puts out 13 gallons of water. Change gears to 3rd and 1600 rpm, puts out 9 gallons of water. Speed difference is less than 2 mph. If I change rpm to 2200 rpm, 2nd gear output increases to 17 gallons of water. Eyeballing is not good enough when spraying certain chemicals in higher concentration. Spraying escort at 2 oz per acre and you go over it twice is a disaster. If using an atv or utv....more difficult because it is really hard to control speed accurately and consistently. Pressure regulator is your friend to help. [/QUOTE]
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Calibrating a Sprayer
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