i finally got some stink to mine too. it is better now, but it started when i placed the cups in a bin with water/ferts in it. it was suposed to drink the water from the bottom but instead it went stagnant and stunk. i flushed real well and dont water that way anymore, it is back to normal now. these drink a qt of water/ferts every other day for 9 cups. i still get drainage but not alot runs off.