Lost At Sea

[Rocketmahn]

I may hate myself in the morning for asking this but...

The manufacturer states the whistle can be heard underwater. Does that mean it can be blown underwater? Has anyone tried it?

On our last dive the DM alerted us when a hammerhead appeared starboard but I didn't look to see what he was using.

Reef Tank
I have one and I can attest THIS SUCKA IS LOUD for a whistle!

I have one attached to my inflater hose for quick access.
It's there so I can quickly alert other people in case there is a problem with me or my buddy. In that case I don't want to waste time digging through pockets with dry gloves on while bobbing on the surface only to drop it..

I have blown it underwater and yes it makes sound. I think that banging on your tank makes a more penetrating sound.