Using your Crestt Series touchless faucet is a breeze. Simply wave your hand in front of the sensor, and the water will turn on. The dual sensors ensure accurate activation. When it comes to water supply, make sure the tempered line adapter is properly connected. For power, just insert 4xAA alkaline batteries into the battery pack. You can easily monitor the power status through the indicator lights on the spout. If the low - battery light comes on, replace the batteries promptly. As for maintenance, clean the faucet regularly with a mild soap and a soft cloth. Avoid using abrasive cleaners as they can damage the polished chrome finish. Also, check the flow control module occasionally to ensure it's working properly and providing a smooth water flow. And remember, this faucet is compliant with ADA guidelines, so use it with confidence knowing it meets the required standards.