This is another update on my 2011 season using self-watering containers (litter buckets) that have no PVC fill tube. Instead, they have a 7/8″ fill/overflow hole at the top of the water reservoir. Near the end of the video I show how easy it is to fill them through the small hole. I used empty litter buckets last year with great success (due to my garden becoming too shady) but they were not self watering. So far this year I have only had to add water to the reservoirs twice, each holding approximately 3 quarts of wate.