Quote:
Originally Posted by Blueblaze
Here's the real reason they're required. 20 years from now your sprinkler heads are going to be 3" lower than they are now. I have no idea why, I just know it's true, because I have a 20-year-old house and I've had to add a new layer of donuts to all the sprinkler heads this year. And there are a couple places I don't care about where I am sure there must have been a sprinkler head once but I'm too lazy to dig up the yard to find it.
What the heck causes that? I'm from Houston, where everybody also has a St Augustine lawn, but I've never seen this before. If the ground is sinking, why is my house just fine? Weird!
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Yes, I had to have 6 pop-up sprinkler heads raised about 5 inches in my front yard because they had sunk into the ground. The donuts had disappeared below ground. No problem in the back yard.