Heavy wetting nappies advice

Charlotte

Hi all. My little girl is 18months old and we're having a problem with her nappies holding her wee. She'll consume a whole 300ml squash cup, then she has 6oz milk drink and 4oz milk in her cereal. So it is over a pint. Trouble is finding a nappy to cope with that. Anyone else have a heavy wetter and what did you find helped? We have tried changing her after a short while (even nappies that boast 12hours protection aren't leak free once they've been on an hour or so). Please help as I'm finding it hard to get out of the house with her atm as by the time we've run a short errand she's leaked. Arghhhhh