Review on Purina Tidy Cats Clumping Springs by Annie Thornton

As with any filling, if you clean the box regularly you will have fewer problems. With Tidy Max Urine Blocker, you'll never have to worry about cat urine smell again. I survived 5 throws. Each several days, regardless of scooping, it is so strong that nothing can be done, but why throw away the litter completely after a week. I dig my box once or twice a day depending on if I remember. So I don't have much of a sticking problem, but if I don't scoop for a few days, which happens when you go traveling, it tends to stick to the bottom. Just scoop regularly and use the scoop upside down to get rid of pesky stuff. As for urine testing, I have to do a full reset once a month. With two cats, this 38 pound box will easily last about 1 1/2-2 months if properly cleaned. Definitely worth $20.