Hi Jim, I too have an anal stricture that has been dilated under anesthesia. I've had this done three times thus far. Two with a balloon, and the most recent with a dilator. The dilators that are used are just like the Hegar dilators on Amazon. I believe the normal person is at 16 to 18 mm in diameter. Since my last dilation, I've started doing them at home also. It's really not a big deal. I am still doing it daily, until I see my surgeon again at the end of the month. The surgeons only dilate as far as it's safe to go, so you may have to go back more than once. I'm sure I have at least to go once more. You only do self dilation to the size they have gotten to. Oh also, at least some of the night time leakage could be due to the fact that right now you probably aren't emptying your pouch fully. Good luck to you. Let us know how things went.