Drain, flush, and clean out dish machine. Pull screens and flush to clean. Disconnect dispensing equipment to prevent the addition of detergent during descaling operation. Close drain of dish machine. Add 1 ounce of delimer per gallon of water capacity for the dish machine. Fill machine to normal operating level with hot water. Run machine in manual mode for up to 5 minutes. Check to see if lime scale is being removed. If this is an initial treatment or there is a severe lime problem, increase the amount of delimer being used. Drain dish machine and flush thoroughly with clear water. Fill dish machine and run through a normal operating cycle. Drain and flush again. Engage the dispensing equipment.