H2Owize HW-2511 25" OD x 6"H Waterwell™ Irrigation Ring Only Water is our single most valuable resource on this planet. Landscape irrigation accounts for 50%-60% of total residential water usage. It is well known that a significant amount of that water never makes it to our plants and trees rather it runs down slopes, driveways, sidewalks and roadways. Using our patented water delivery system helps prevent water waste and promote healthy growth in plantings