Leakage during neobladder enlargement

Thank you for your reply Sara.Anne.  !!  I am under no illusions as to how long this will take !  I suspect that I'm at the start of a long journey.  I also posted on the UK Macmillian forum, and one contributer said to avoid movement which tends to bring on leaking.  (This is EXACTLY what I am experiencing).  So I am planning to go and lie down at the 35 minute point and then concentrate on "holding on" for as long as I can, and see how that works !!  Again, many thanks for your reply !

Hello, I had my bladder removed 6 weejs ago and am now attempting to enlarge the neobladder.   I was told to use a flip-flow tap on the catherter and keep the tap closed for an hour, then release it and measure the output,  When I can manage an hour, then increase to an hour and half, and then 2 hours, etc.  I understand that this would stretch the neobladder tissue and thus increase it;s volume.   My problem is that most times, I get to about 45 minutes, and it starts leaking - i can't seem to make progress.   What should I do ?  Is the catherter tube too small ?  Any suggestions from others who had this problem would be greatly  appreciated !