My cat is on antibiotics for a bladder infection but now seems to be weeing normally, just not in the litter trays
He has overnight had a wee on a towel that the dcs left on the bathroom floor and in the middle of the floor under the kitchen table
I have 3 litter trays (2 cats) which I keep really clean, he's getting on well with my other cat
How do I get him back to using the trays?