Hi Folks, any genius' out there. I have a close coupled toilet that dribbles water into the pan. Cant see a makers name on the flush unit but Ive had it out and both myself and a guy at Plumb Centre cant see a problem with either the action or the seal, it all looks new. Ive cleaned it even though it didnt need it but cant see why it dribbles. It ont dribble when the water covers the join between the unit and the cistern but any higher and off it goes. It also didnt dribble when the cistern was bone dry but after a flush when it got wet again, it didnt want to seal properly. Help please, ive used all my brain cells on this.