



Hi, currently my cistern is leaking into the toilet bowl. I believe it's due to the seating washer which is quite worn. I'm having trouble finding the correct fitting seating washer and looking for some advice. It is a duel flush toilet. The marking inside cistern says GWAIL (which I believe is the brand) and toilet was installed in 2001/2002. The size of the washer is 27mm interior hole and 68 exterior (I'm not sure if it stretched over time) also please see photos below. Thanks in advance, any advice would be much appreciated