How do cleaning conditions affect dosing of detergents?

Amount of soil load, type of soils, cleaning process and water quality will all affect detergent dosing. It is recommended to start at 1 oz./gallon of water. Dosing may need to be increased for heavy, dried-on, fatty / oily soils or when using tap water over 200 ppm hardness. Manual cleaning without the aid of impingement (spray pressure) may also require increased dosing.