Originally Posted by irritation
They take out turf and soil around the sprinkler head so it can get crooked when the mowers run over it.
I also provide the mowing at my sites, bad haven't seen this problem yet. I find most heads are buried too low and end up stuck under the mat of grass encasing them. I don't dig all the way down with it when I'm doing spring startups, just enough to get the sod. Here we are a month later and I can't see most of the heads again.
I can see it being an issue if you remove too much dirt when using the trimmer, but I remove just enough to get the sod.
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