CL2 Leak. Advice?

After feeling much better, I'm suddenly feeling worse and mrs. guest says I'm snoring again. I'm sure the problem must be a leak.

I filled my CL 2 tube full of water and it all leaked out at the blue part that you turn to adjust the length. (Where the numbers 1,2, 3, 4 etc. are)

Two questions. Anyone else have this problem? Can it be fixed or do I need a new mask? Thanks.