TV's Frink said:

Davnes007 said:

They each went deep enough [under water] to get their sabers wet.

I just don't remember Obi-Wan ever having a non-functional saber (during TPM) at any point.

That's because it never happened.

I believe it was meant to happen but never did.

Remember the footage of Obi-Wan doing a Martin Sheen (I wonder if that will turn up on the bluRay)?

I believe that it was intended that his sabre would short out and Qui-Gon would tell him off about it in the same way that Anakin gets earache from his master in AOTC.

Correct me if I'm wrong here.

Even so it didn't appear in the final film so it's a mute point.