can i just ask if anyone knows what i should do in this situation: last week i changed the syphon on my cistern, but when i attached the cistern back onto the pan (close coupled) a little bit of water comes through (the wing nut holes) when i flush the cistern. it's not much, but adds up over the course of the day. do i need a new donought washer (like-for-like one). the thing is, this wasn't leaking before i changed the syphon so how comes it is now!!!! weird or what?!!