Bit of a weird one maybe but how full are your bags before you empty them? I seem to be emptying my bag every 3-4 hours with about 100-200 ml in, when the bag is probably about 1/4 to 1/3rd full. But how much can I get away with if I needed to? I'm basically not sure If I'm just emptying my bag more often than I need to be which is fine when I'm at home but means when I go out anywhere I start to get really anxious if I don't get to a toilet within a few hours to empty, even if I could effectively leave it for longer.