Instructions for use (by immersion): for small components, immerse them directly into a container with DE-20. It can also be used by completely filling the cooling system and letting it act. Instructions for use (by recirculation). Outboard motor: mix in a bucket of DE-20 with fresh water and place it under the propeller. Start the engine and let it absorb the mixture through the water intake and recirculate for 15 minutes. Inboard Engine: A pumping system is needed to inject DE-20 and recover it for recirculation. It is recommended to dilute DE-20 from 25-50% with fresh water, depending on the amount of lime scale and not to exceed 45 minutes of application. The mixture has a red color that disappears when deactivated.
