Jan, I believe you've just made yourself famous around here. It makes a real difference to know that a TouchStream can survive to those electric shocks. Those are likely to happen sooner or later to some of us.
As you said, you certainly need to look for "friendly people" because the plumber next door would not help much
Still, I suspect the proper equipment might not be easily available. Could you be more specific about what was involved during the operation? Answering to half the questions from RAPH would be just fine