When is it recommended to add a compatibility agent during tank mixing order?

• A. Before adding suspension products, as the first step.
• B. After adding emulsion products.
• C. After adding suspension products.
• D. After adding solution products.

Answer: (A)

Adding the compatibility agent at the very start, before any products are put into the tank, is the best practice. It needs time to disperse in the water and condition the mixing environment so that subsequent products—especially suspension-type formulations—disperse evenly and stay stable. When you introduce the compatibility agent first, it helps prevent interactions that could lead to precipitation, clumping, or separation once suspensions are added. If you wait to add it after suspensions or other products are already in the tank, the agent may not prevent incompatibilities as effectively, and you can end up with unstable mixtures or plugging. Always follow the label, but in general, prep with the compatibility agent first to promote a uniform, stable mix.