Cleaner to remove badly stained carpet

[Flapjack]

Hi,

Can anyone recommend a really good carpet cleaner that will remove cats urine. Have four cats and our carpet its pretty bad in places and many cleaners we have tried so far are just not strong enough. Any recommendations would be great.

Thanks

[Kim]

'Urine off' is good to remove the smell. http://www.petfresh.co.uk/