I have read a lot about this controversy and I am still continuing to use the clumping litter. You may want to monitor the cat carefully for signs of intestinal discomfort - also give your vet a call and ask about the sand in the hairball. He/she might be able to give you a little more insight.

I would not use clumping kitty litter on young kittens, however.
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Smile, it will make them wonder what you are up to!

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