Discharge line
When the dishwasher runs, it drains water into the same pipe connected to the garbage disposal. If there is a clog or blockage in the pipe, the water from the dishwasher can push the water back up through the garbage disposal.
You need to check for a clogged pipe .
A dishwasher drains the water into a drain pipe or a designated drainage system after completing a cycle.
The dishwasher drains water through a hose connected to the sink's plumbing system or a separate drain pipe.
To clean and maintain a dishwasher waste pipe, regularly remove any debris or buildup by using a pipe cleaner or a mixture of vinegar and baking soda. Ensure the pipe is securely connected and free of kinks. Run hot water through the pipe to flush out any remaining residue. This will help prevent clogs and ensure efficient drainage in your dishwasher.
After completing a cycle, the dishwasher drains water into a drainage pipe connected to the plumbing system in the kitchen.
if it's plastic pipe you can just buy a glue cap and glue it on. If it's galvanized or cast iron pipe you can use a gym cap, (arubber cap that comes with a hose clamp). Just put that on the pipe and tighten it down firmly. this will prevent any sewer gas from coming out of the drain.
To prevent sink drains from flowing into the dishwasher, ensure that the dishwasher drain hose is installed properly and is not clogged. Additionally, make sure the sink drain and dishwasher drain are not connected or sharing the same pipe. Regularly check and clean the dishwasher filter to prevent clogs.
To connect the dishwasher drain properly, ensure the drain hose is securely attached to the dishwasher and the sink's drain pipe. Make sure there are no kinks or blockages in the hose, and that it is positioned correctly to prevent leaks.
In a kitchen plumbing system, the garbage disposal and dishwasher are typically connected through a shared drain pipe. The dishwasher drains into the garbage disposal, which then sends the wastewater through the same pipe that leads to the main sewer line. This setup allows both appliances to efficiently dispose of food waste and water.
The sink drain is plugged,or you have the dishwasher hose hooked up in wrong place.
The best way to connect a dishwasher drain hose to a sink with a dishwasher drain hose adapter is to follow the manufacturer's instructions carefully. Typically, you will need to attach the adapter to the sink's drain pipe and then connect the dishwasher hose to the adapter securely to ensure proper drainage.