March 2009. Clumping, fine-grained cat litters like Scoop Away Multiple Cat Formula are far and away the most popular type of litter in the U.S. Owners give the slight edge to this brand over the similar Tidy Cats Scoop (*est. $17 for 27 lbs.), saying cats like its texture and its clumping makes it easy to clean. However, some pet owners are suspicious of the chemical additives that cause clay litters to clump, and others say cats tend to track fine-grained litters like Scoop Away around the house. If you're willing to experiment with an organic, flushable, clumping, large-grained cat litter, you might want to consider World's Best Cat Litter (*est. $40 for 34 lbs.), though it's far more expensive.
We found the best comparative reviews of cat litters (including Scoop Away) at Slate.com and in an article from the San Francisco Chronicle. We supplemented these reviews with owner posts at the online pet retailer Petco.com.
Our Sources: Scoop Away Multiple Cat Formula Cat Litter Review
Kelly Alexander tests four different cat litters on her cat, Izzy. Although she does not compare it to any other clumping clay litter, she finds that Scoop Away offers the "overall best combination of price and convenience."
Review: Hello, Kitty: The Scoop on Newfangled Cat Litter, Kelly Alexander, Aug. 9, 2002
2. San Francisco Chronicle
In this thorough article, Christie Keith discusses various types of cat litters and recommends Scoop Away and Arm & Hammer for clumping litters. It is unclear, however, if Keith actually tests many of these picks.
Review: Digging Deep Into the Cat Litter Question, Christie Keith, July 10, 2007
3. Cats International
Specific brands are not compared in this article, but it is noted that cats with sensitive feet are most comfortable with fine-grained clumping cat litters. The writer of this article only recommends Scoop Away Unscented.
Review: Which Litter is Best for Your Cat?, Editors of Cats International
The online pet-supply retailer Petco is a good source of customer reviews for cat litter. Scoop Away Multi-Cat Formula is well-reviewed here, with a rating of 4.3 out of five from about three dozen users. A few users find it dusty, and some say the perfume scent is too strong.
Review: Scoop Away Mulit-Cat Formula Clumping Cat Litter, Contributors to Petco.com