Before use, remove the drain tap from the drain pipe. Before use Shake the canister up and down 10 times. Turn the special nozzle in the "open" direction to release the lock. *Do not look directly at the air inlet at this time. Wash the canister with the special nozzle over the drain. Press the canister so that it is perpendicular to the drain. Accelerated cleaning Spray Mach foam, dirt and clogs are flushed away. Stop spraying using the guide line with the amount of bubbles coming out of the overflow hole for use (about 3-7 seconds). Soak and disinfect If you want to thoroughly clean, deodorize and disinfect the bacteria, leave for about 30 minutes without water. Lift the special nozzle upward and turn it in the "LOCK" direction to lock it in place. Depending on the construction of the drain, bubbles may not appear, but the spray standard is about 3 to 7 seconds. After cleaning, rinse the sink with water to remove any remaining foam. [Estimated dosage] Approximately 3 to 7 seconds at a time (approximately 30 seconds when one person can be fully injected) If dirt or clogging is severe, adjust the amount again after a period of time and use more.