Help, my toilet is overflowing and I have no idea how to stop it.....I had the toilet fitted 4 months ago and now it's overflowing constantly. I understand that this type of fitting is 'continental' in that is overflows back into the toilet. To flush you have to press a button in the top centre of the cistern. I don't know what to look for to stop it filling so far. I am not familiar with plumbing at all. Look forward to a speedy reply. THX Worried Joanne. PS: Please reply in laymans terms