
nikita and lilli's mommy wrote:Thanks for the help, my only question- won't the urine leak down the sides of the coroplast and still eventually penetrate the cardboard? I will definitely attempt to try this though. Thanks again!


Jack 'n Stans Dad wrote:My two little guys seem to pee more than any cat I've known, so I was looking for something to fix this.
I got one of the "forever" permanent replacement cartridges off of Ebay. Made of PVC.
No more leaks.
And it's paid for itself already just being able to clean and refill instead of buying cartridges all the time





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