Which of the following is a sign of incompatibility developing in a tank mix?

• A. Flakes forming in the tank
• B. Crystals precipitating in the tank
• C. Clouding of the mixture
• D. Oily clumps appearing in the tank

Answer: (C)

Clouding happens when two ingredients in a tank mix don’t stay fully in solution and start to form tiny droplets or suspended particles. That light is scattered by the dispersed material, so the liquid looks milky or opaque. It signals instability from incompatibility and is an early warning: if the mix becomes cloudy, problems can escalate to precipitation, phase separation, or oiling out if you keep mixing. Flakes or crystals show that solids have already come out of solution, and oily clumps point to emulsification or separation—both signs of ongoing instability, but clouding is the initial cue that incompatibility may be developing.