Mixing – Sprayers 101

Circulating Spray Mix Through a Tank-Rinse Nozzle Maintains Nematode Concentration

(A) Tank-rinse assembly mounted through tank lid with a flow-regulating valve. (B) Close up of tank-rinse nozzle.

Posted on August 25, 2025 (August 25, 2025) by Jason Deveau (Spray Guy)

This article was co-written with Jennifer Llewellyn, former OMAFA Nursery Crop Specialist With more and more bio-rational products on the market, crop protection methods may require reassessment. Certain products require exacting water quality, cannot tolerate residues, and have half-lives that are both time- and temperature-critical. We’ve been getting questions about sprayer compatibility with some of […]

The Real Story behind pH and Water Hardness

Posted on April 10, 2025 (April 11, 2025) by Andrew Storrie

Editor’s Note: Changes and updates have been made to this article since its original publication in 2019. Introduction The quality of water being used in the spray tank to act as the carrier for your pesticides can have significant effects on how well those pesticides will work. So it may be surprising that very few […]

Closed Transfer Systems – They’re here.

Posted on January 29, 2025 (July 29, 2025) by Jason Deveau (Spray Guy)

What is a Closed Transfer System? Closed Transfer Systems (CTS) permit the direct transfer of pesticides from container to sprayer while isolating the process from the operator and the environment. Similar systems are already used with bulk pesticide containers and in other industries to dispense a wide range of liquids from household products to industrial […]

Tank mix compatibility

Posted on January 27, 2025 (March 13, 2025) by Jason Deveau (Spray Guy)

What is Tank Mixing? Tank mixing is the practice of combining multiple registered agricultural products in the sprayer tank for application in a single pass. The Pros of Tank Mixing The Cons of Tank Mixing Tank mixing requires caution and careful investigation. Should tank mix partners prove to be incompatible, the consequences can be subtle […]

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Think before adding adjuvants

Spreader/Surfactant penetrating wax paper to get to water-sensitive paper.

Posted on January 3, 2025 (January 28, 2025) by Jason Deveau (Spray Guy)

It’s odd to begin an article by suggesting the reader consult another, but Dr. Tom Wolf wrote a great summary about adjuvants for SaskPulse in 2023 and you can and should download it here. While I’m at it, also grab this article by Rich Zollinger, Emeritus Extension Weed Scientist, North Dakota State University. OK, back […]