There are 72 spikes which are 3 inches long and they penetrate up to 2 and 3/4 inches deep. If your sprinkler system is above the ground or buried less than 3 inches deep, it is possible the aerator spikes could damage the system.
answered 3 years, 1 month ago
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When filled with water full length if the gorund is soft at all, 3.5 inches or so. If really hard ground It will go over an inch at least.
answered 2 years, 6 months ago
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