Hi,
Got a problem with toilet. When flushes the water in the pan rises (as if when it is blocked) but then goes down very quickly so there is virtually no water left in the pan. Has suddenly started doing this for last 1-2 weeks but the height it rises is increasing. Wasn't sure if the cystern was over filing, but have tried flushing when cystern is half full and it does the same. I'm no expert so any help is much appreciated. Thanks