Title: Great idea, so-so execution
Review: We have a smallish yard in San Francisco - rectangular. We are trying to minimize the amount of wasted water.This product seemed to be the perfect solution, but it doesn't work quite as well as it should:1. There are stronger areas and weaker areas - so, if you're using the square, there might be one side of the square where the water goes further than the other side. Thus, not quite a square.2. Missing a couple of shapes - as noted by the other reviewer.Really wanted this to work. It's a great idea, just doesn't quite do the job.
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