Practical tips
- Clean the dishwasher filter at the bottom of the tub; food scraps there block draining.
- Check the air gap on the sink deck or the high loop under the sink for clogs.
- Run the disposer empty before the dishwasher so scraps are not sitting in the shared drain.
- If water still sits after those steps, a kinked or clogged drain hose under the sink may need a plumber.