Using this Gojo TFX soap dispenser is easy. First, mount it on the wall. Then, insert three C-size batteries (not included). Next, fill it with a 1200-ml foam soap refill. When you need soap, just place your hand under the dispenser, and it will automatically dispense the right amount. Make sure to keep an eye on the extra-large window. When it shows low soap level, refill it promptly. For maintenance, occasionally wipe the dispenser with a clean, dry cloth. Avoid using harsh chemicals that might damage the plastic material. Also, replace the batteries when the dispenser starts to slow down or stops working properly.