Using the Brizo Charlotte Sensori Volume Control Trim is easy. First, make sure you've ordered the rough separately and installed it according to the instructions. Then, attach the trim to the rough. Adjust the volume control to your desired water flow, keeping in mind the recommended working pressure of 45 - 80 psi for the best performance. When it comes to maintenance, simply wipe the trim with a soft, damp cloth regularly to keep it looking its best. Avoid using abrasive cleaners as they can damage the durable zinc construction. Also, be aware that this product complies with California Proposition 65 regarding lead exposure, so you can use it with confidence.