Rebuilding my underwater gear

It´s time to start working on my projekt about UV-rugby (that I wrote about here) again. But before I jump in the  water I must rebuild my underwater housing. The fiberoptic cable to the flash unit did not work that good last time I was there. It jumped off causing the flash to fail.  I dont really know how I should do but the problem is to be solved. I will get back to this.