- Considering the staple in the duckbill... I have encountered DA Aqua Masters with the duckbill GLUED to the can. At first I thought it was the old rubber and saliva just turning the duckbill into glue. But now I think it was on purpose. Here's why...
- While fooling around with a Mistral, in which we had installed a new duckbill, we somehow managed to free flow the reg and in the process SUCKED THE DUCKBILL BACKWARDS. This caused the duckbill to jam shut on the next exhalation.
- Later we told Sea Hunt Jerry about it and he said that duckbills DO get sucked backwards once in awhile and jam up the exhale capability.
- So ever since then, when I install a duckbill, I put a drop of silicon glue on the back and glue it to the can.