Hi, We've just moved with our two cats (brother & sister, 10 years old), we kept them inside for 2 weeks and installed the cat flap last Saturday. No problem with the male (he's the clever one...), but the female does not want to use the catflap and is peeing inside the house. She's doing it on an old piece of carpet I left in the kichen (where the cat litter used to be, now it's outside), but I'm scared she starts peeing on the new carpets around the house. If i take her outside and close the door, she uses the catflat to come in, but not to go out!! What can be the problem, and what can i do? I've thought about putting the old piece of carpet outside (must smell), but I'm terrified she uses the new carpets! And I'm away from home all day working, so can only be with them in the evenings... Any advice would be appreciated!