For Efficiency, Balance the Refrigerator

QUESTION: I’ve heard that it’s important to make sure a refrigerator is adjusted so that it is level. I always thought that this was necessary so the doors would close automatically.

ANSWER: Although it’s true that the level adjustment of the refrigerator has a bearing on the self-closing action of the doors, a refrigerator runs most efficiently when it is level. Also, some refrigerators have a condensation drain pan that may spill its contents if the refrigerator is not level.

Most refrigerators have screw-type adjustable leveling legs under each corner. Other refrigerators have rollers at the corners. The two front rollers are adjustable.

The rollers are located behind the base grill, and they are adjusted with a socket wrench or a screwdriver. Turn the adjustment screw in the roller’s center clockwise to raise the cabinet or counterclockwise to lower it. Place a level on top of the refrigerator. Check it for level from side to side, and adjust it as needed. Next, check for level from front to back. If the refrigerator doors do not swing shut by themselves with the appliance level from front to back, you may need to adjust the cabinet slightly higher in the front.

Handbook Provides Details on Fasteners

Q: I am planning several projects that involve drilling and fastening to stone and concrete. Frankly, I’m a little overwhelmed when it comes to the variety of carbide bits, anchors, fasteners and other considerations that need to be sorted through. Is there a guide or a good source for concise information in this area?

A: Fastening to stone, concrete, block, brick and drywall can be tricky; the “Rawl 47M” is an industrial-quality handbook that can help you do the job right.

It’s 135 pages of the most thorough information we have seen on this subject. Of course the Rawl Plug Co. is pitching its products here, but at least it does a good job.

Each of the company’s fasteners is illustrated in clear drawings that show how the fastener is installed. Also listed is the fastener’s length and the diameter of the drill bit needed to install it.

There’s other information here, on corrosion and load limits, for instance, much of it industrial in nature. But if you pay close attention, you’ll see how this applies to fastening around the house.

Rawl anchors and fasteners are sold at hardware stores, home centers and industrial supply houses. To get a handbook, write to Rawl Inquiry Handling Center, P.O. Box 8116 Trenton, NJ 08650-8116.

Faucet Is Crying Out for a Change of Washer

Q: We have a faucet that squeals when it is partly turned on. The squeal stops when the faucet is turned past a critical point. What causes the squeal and what can I do to prevent it?

A: A squealing water faucet is usually the result of a worn washer. When the stem is backed out (someone turns on the water) and the clearance between the frayed washer and the valve seat reaches a critical distance, the washer will vibrate and squeal like the reed in a wind instrument. As the valve is opened more, the space becomes greater and the vibration and noise cease. Simply replace the washer.

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To submit a question, write to Popular Mechanics, Reader Service Bureau, 224 W. 57th St. New York, NY 10019. The most interesting questions will be answered in future columns.