Used to be when your plants needed water, you’d fill the watering can and take care of business. Now the good folks at Clean Air Gardening Co. want us to use their “Oxygenating Watering Can” which “uses electrolysis to super-oxygenate the water to levels up to 150 percent oxygen saturation.” We don’t quite understand the science, and we really don’t get what the video shows. It’s at their site, Clean Air Gardening.com. Go there, and click on “Video.” Doesn’t it look like Alka-Seltzer? And for the 90 bucks their asking, we’ll stick with that cheap plastic can we got at the 99-cent store.