Spring means beautiful lawns and gardens are on the way, but are your sprinklers all working OK? Pop-up sprinkler heads are easily damaged and often get clogged with dirt and debris. Here's how to check and repair sprinkler heads that are worse for wear. You can do it in less than an hour with a flat-blade screwdriver and pair of pliers. If a head is clogged, remove the center insert by turning it clockwise with the pliers. Inspect the openings, clean the small cone filter and check water flow by running it like a geyser before reassembling and checking the spray action. If it's no longer aimed properly or over-waters, be sure to readjust to avoid wasting water and causing moisture damage to your home. Puddles are caused by plant growth -- just trim to clear. If needed, reset area sprinkler patterns too. Check timers to see if you're over- or under-watering. And inspect your entire system monthly to be sure it's still working all right. And that's the On The House tip for today.