The many possibilities yield various optimal sprinkler placements that cover the soil tiles while using the fewest possible sprinklers in plantable locations. Some sprinklers are inevitably placed on the wooden border. With iridium sprinklers, only 4 crop spaces (3.3%) must be taken, while with quality sprinklers, 12 crop spaces (10%) are occupied.
You can use [[Sprinkler#Upgrades|pressure nozzles]] to cover the whole area with only one tile unplanted, leaving 119 tiles for plants.
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