I agree for drip installations !
FYI, if you want to get more accurate water consumption you can do it by adjusting your sq. footage according to the calculator here. Just plug in the GPH/plant and #plants to match whatever your total GPH is for the zone. For example, for that 92GPH for the 100ft of tubing you mentioned put in 1 GPH/plant and 92 in ‘# of plants in your zone’. Also fill in the ‘Gallons you want to apply’ and ‘Inches of Water applied in Flex’ to match how much you are watering. The resulting ‘Zone Area’ should give you more accurate estimates for the water consumption.