1) I tried taking the centre section (the circular bit with all the pipes) off without removing any pipes, i did manage this, but a small pipe came loose from the centre section, this was a pipe without a clip on it, it literally comes on and of with my hand, also a small thin plastic pipe was open towards the side of the reservoir. Needless as these were the only bits open, i put two and two together and simply put this back together, is this correct? I cant see any leaks or problems.
2) Whilst empty the LHM out of the reservoir, im sure i saw a cream coloured plastic piece of something, similar to a £1 coin, obviously i cant find it now, was this important?