The US-based Scuba STAR Network is running the survey as the latest in its regular line of bi-monthly surveys on equipment and diving activity generally.
"Modern BCs are complex devices, incorporating a myriad of valves, connectors and moving parts," says Scuba STAR. "Divers sometimes suffer problems such as stuck inflator valves, or the inability to deflate the device."
It would like divers to participate "whether you've ever had a BC problem or not", and is interested in divers' experiences with BCs "whether owned, rented or borrowed".
Scuba STAR aims to help recreational divers go about their sport in as safe a manner as possible - and to influence, where necessary, equipment manufacturers, trainers and others in a bid to improve diving products and techniques.
Its survey results are read with interest by industry insiders and, as such, carry influence with some of the industry's key decision-makers.
The online survey questionnaires can be completed in minutes. Respondents are assured of anonymity, and final reports are published on the websites of both Scuba STAR and DAN (Divers Alert Network).
To participate in the BCs survey, go to www.scubastarnet.com
Reports from previous surveys can be viewed at the site, and some also appear on Divernet. Divers can also share their experiences on any safety-related subject - for instance, the use of computers or buddy rescue in out-of-air situations - by using the organisation's Anonymous Reporting Form.
Data is used in the compilation of Scuba STAR's Annual Safety Report.