To keep your drains running smoothly, you should routinely run hot water down the drain after every use and and avoid pouring grease or food down the drain. In addition, it’s a good idea to have every use and avoid pouring grease or food down the drain. In addition, it's good to have professional plumbers conduct routine maintenance on your drains every 6-12 months. This will help ensure that any underlying issues are addressed before they become more serious.