Diy Plant Water Catcher . 1.3 #3 planter conversion using an empty bottle. Check out this detailed diy post at den garden to learn about how to make this one easily at home! Rain water catcher so you don't need to use fresh water every time you from www.pinterest.com Drill a few holes in the top of the lid with a fairly small drill bit. Place a saucer underneath the pot and fill the saucer with fresh water when it's time to water. Next, fill your bottle with water, screw the lid back on, and invert it into the soil next to your plant, making sure that.