Company that did this install is the "low bid". This doesn't really show the whole picture, but they didn't have head to head coverage by about 15', then they placed this head about 7' off the property line, even though the lot line stake was right there. Anyway, the owners complained, they came out and "fixed" the problem by running funny pipe over to the proper location, owners called me to see this. All the heads were loose, so the lady of the house dug it up and seen this. Might be hard to see, but the poly line is about 4" deep max. and then the fitting assembly wound up to be right under the sod, funny pipe the same. Needless to say, they, as un-learned as they may be, knew this was a "hack" job.