I’m told I can reduce watering by 30-50%. That’s a 20% window of savings. Why such a large window?

Every yard can have very different soil conditions before treatments start. It can be different from one neighbor to the next. Some owners may have brought in topsoil, where another just brought in whatever was free before planting their lawn. Some fertilize, some don’t, some water properly, some don’t. Because the soil conditions, or health of the soil, is so different from house to house we get very different results even between neighbors that live next door to one another. This difference in existing soil means different results. However, we take the current state of the soil and drastically improve it in a very short period of time.