Q: My son was in the backyard playing soccer, and he must have hit a sprinkler head. The sprinkler now wobbles from side to side, and when the water comes on it’s like Old Faithful. How can I fix it?

Broken sprinkler heads should be replaced quickly, as they waste water and are ineffective for irrigating your lawn. You don't need to call a plumber to fix it, though—you can do it yourself. If ...