Yeah -- I was disappointed that he didn't show an example of a maze which is not solved by water (for a finite amount of head). I most often experience this phe

Yeah -- I was disappointed that he didn't show an example of a maze which is not solved by water (for a finite amount of head). I most often experience this phenomenon is when I'm putting the garden hoses away for the winter when you want all the water out of them. However, if they tend to curl up, then you can get into the state where the water won't come out of the hose once some air gets in. The only solution is to straighten them out.