The slime coat shed has been mentioned to me in relation to "regurgitation" and therefore the subsequent fouling of the water. I have never witnessed my cat doing the regurgitation thing. Although I admit to probably feeding him more at one time than I should, as evidenced by the gross distention of his abdomen, he's never asked me to bring him a bucket...ah, who knows. Whenever I notice his slime a little shaggy, it clears within a day or so.