Carol asked ... How to remove roller from lawnmower?    |    Ariana Orellana asked ... Code?    |    Lynnie asked ... BT Studio 4500 cordless telephone?    |    David Dawes asked ... How to recoil the starter spring - Champion R484TR?    |    peter high asked ... How can I set time on my Neff oven?    |    Click here to ask your question

Laufen Cistern noises?

I have a hissing sound in the laufen toilet cistern followed on by a very loud groaning noise. Can anyone tell me what the the problem is. It also appears that there may be a leak as there is a slight trickle of water into the toilet. Please help.
George Tatton, March 2013