[CommasTossKryys]

Emphasis mine:

Umm....did you not see earlier in this thread that they were going to change, and they have?

Thanks for pointing out that the waterbreathing helm needs to change. As with the magic of a ring of nondetection no longer granting permanent immunity to scrying, expect the helm of waterbreathing to be changing sometime in the very near future as well. Most likely it will be changing to a waterbreathing spells per day model rather than a permanent "always on" model like it is now.

You'll now need to use one of the Water Breathing spells per day that come on it.

That post isn't very clear about the change to the helmets being included with the server update that made the change to the plane of water (or any server update, for that matter). Even so, my existing Helm of Underwater Action did not have any "uses per day" of cast spells for Underwater Breathing in its item properties. It only had Darkvision, Spot +something, and a light source.

We thought we were fine to go in the way we were because we didn't know the change had occurred.