Using the ASI 0469 is a breeze. The towels are self - feeding, so you can just pull them out until the supply runs out. When it's time to refill, you can add a partial load right in place, and it will keep feeding properly. The waste container needs to be emptied manually according to your maintenance schedule. To install, use four No 10 self - tapping screws through the concealed mounting holes. Remember, the top of the rough wall opening is 3/4' below the top of the unit. For ADA compliance, install it so the towel dispenser slot is 48' maximum above the finished floor. Keep in mind that both the towel dispenser and waste receptacle are locked with a keyed tumbler lock to prevent unauthorized access. Regularly check the lock and hinges for smooth operation. Wipe down the stainless - steel surface with a mild cleaner to keep it looking great and to prevent rusting.