Disposal runs but water drains very slowly from the sink, even after clearing visible debris.

Safety first: Turn OFF power to the disposal. Do not use chemical drain cleaners.

• Clean P-trap: Place a bucket under the trap. Loosen slip nuts and remove the P-trap and horizontal arm. Scrape out grease and sludge, then rinse thoroughly.
• Check wall stub-out: Use a small drain brush or plastic snake to clear the first few inches of the wall drain.
• Verify slope: Ensure the horizontal drain arm slopes downward toward the wall. Adjust hangers or piping if it sags.
• Reassemble and test: Reinstall all parts, tighten slip nuts, then run water and operate the American Standard disposal to confirm improved drainage.
• Persistent slow drain: If the line remains slow, a deeper clog in the home’s plumbing may require a plumber with a longer auger.