Bob DBF
Contributor
I use the rear dump when horizontal or head down which is the vast majority of the time. I don't have a pull dump on this rig, however I used it frequently on my last rig.
I've used and serviced pull dump inflators, and don't find them particularly fragile, but are made of plastic. Misuse makes anything fragile.
The ScubaPro BC manual makes no reference to the pull dump being for emergency use only. In addition it is the first description on how to deflate the BC given in the manual. It also tells the user that pulling on the dump harder will not open the valve more once fully open.
Bob
I second this. Anyone that has serviced pull dump inflators can vouch for their fragility. The worst I have seen is the aqualung version.
I've used and serviced pull dump inflators, and don't find them particularly fragile, but are made of plastic. Misuse makes anything fragile.
IMHO the pull dump inflator mechanism is for emergency only. For standard venting always use a dump valve or deflate button.
The ScubaPro BC manual makes no reference to the pull dump being for emergency use only. In addition it is the first description on how to deflate the BC given in the manual. It also tells the user that pulling on the dump harder will not open the valve more once fully open.
Bob