Haier HDT18PA User Manual - Page 11

GB Pouring Dishwasher Detergent: Use proper recommended amount of detergent for your wash loads. Pour in detergent into open compartment that is located on the inside of the door. Proper Use of Detergent: The amount of detergent to use depends on the type of water in your living area whether it is hard or soft and whether items are lightly or heavily soiled. Water softness or hardness is measured in grains content per gallon. You can find out grains level by calling your local Environmental Protection Agency (EPA) in your county. If you find that "grains" level is higher in the water then the water will be harder in your living area so you will need more detergent to clean. If "grains" level is lower then the water will be softer in your living area so you will need less detergent to clean. See the following table to understand the "water hardness type" and "grains" level. Water Hardness Type Hard Medium Soft Level of Grains in the water 10+ 4-9 0-3 Note: If "grains" level is over 12 then water is very hard. You may need water softener to improve the water quality and the performance of your dishwashing. Note: The quality of detergent will make the big difference of cleaning your dishes. If you are using detergent that is damp, clumsy or too old then this type of detergent will not be as effective to clean because of active ingredients are phased off and the detergent will not work properly. 10