Even if your home’s drainage system is invested in the best care, it can still be damaged if you throw the following items down the drain every day. To fix it, it’s very simple, you just need to use the trash as usual.1. Cat litter:  Silica gel particles, minerals or cat litter cannot be dissolved in water. When wet, they form large clay-like clumps that easily clog your home’s drainage pipes.2. Coffee grounds:  Many people have the habit of pouring coffee grounds down the sink. Over time, they gradually accumulate in water pipes and cause blockages.3. Wet towels:  They can block the drainage system. And as a result, you will have to clean the pipes every 3 months.4. Baby diapers:  The gel inside the diaper cannot be dissolved. Even when exposed to water, they swell and cause blockage in drainage pipes. 5. Cotton swabs:  They often stick together in the kinked tubes and can trap other trash such as hair and cause blockages.6. Oil and lubricants:  You should not pour leftover cooking oil down the sink because after it cools, it will form pieces and blocks that can clog water pipes.