Peeing on the wet room floor.

[MedusaIsHavingaBadHairday]

Three cats , three litter trays (one cat never uses it..she always asks to go out)
Two trays in our wet room, which is a long.. 20 foot but narrow room, so plenty of space. The trays are scooped as soon as pooed in, and whole litter changed every other day, as both kittens use them.
Obie has had a few random wees (and couple of poos) since we had him, however he is now weeing regularly on teh wet room floor. At first it was by the shower drain which wasn't so bad as I could easily wash it away, but not it's further up the room, near the sink and litter trays. He poos in the litter no probs. Tonight he watched me completely clean and refill the trays and STILL peed on the floor. No idea why, he is healthy, happy and smug!

Any idea how to discourage this? I have been cleaning with bleach which is probably not a good idea, so any tips appreciated!

[thecatneuterer]

Don't clean with bleach. Try white vinegar - that seems to discourage repeat offending. To be fair though, if I could choose a place for mine to randomly pee then, if I had a wet room, that would certainly be my first choice! It could be so, so much worse ...