Recently we discovered a lot of people think TreeDiaper is just another watering bag. Some of the watering bag sales guys intentionally or unintentionally tell people that these two technologies are the same. They also use the capacity as their selling point. However, the difference is about the amount of water that is wasted. By releasing 15-20 gallon in 8 hours when not clogged, watering bags waste 90% of water. Watering bags cannot absorb excess water up. TreeDiaper is a totally different technology. Below is a comparison of these two technologies. 

You can download it here: https://www.treediaper.com/downloads/UOTDvswateringbagscomparisontablee.pdf

Below is a graphical comparison with donut-shaped watering bags, which are worse than the vertical version because it behaves like a larger umbrella than the vertical ones.