I managed to unscrew the filter and take it out but with great difficulty!Now I can`t put it back in!There`s nothing inside but a bit of lime scale so puzzled why it won`t go back in.The model ZWF 12080 W
it has a groove top and bottom.Make sure the filter is put in the right way round.if it doesn't go in one way rotate through 180 deg and retry but the grooves must line up.Scale can also stop it going back smoothly
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