We use cookies to provide you with a better service. Carry on browsing if you’re happy with this or read more about our cookie policy and privacy policy.
Did you mean: 220mls
We recommend that you drink between 6 and 8 mugs or glasses (200mls/7fl.ozs) every day.
If the volume of urine drained is below 200mls, reduce the number of times the valve is opened to encourage a larger bladder volume to be emptied.