If you have a kettle or canister style pool filter, it could be deadly. In California, a woman whose husband was killed by one of these units is leading a crusade to warn the public. You can visit her website to get more information on these units. Since 1982, there have been at least 22 other similar incidents reported to the CPSC. However, the CPSC does not know of every incident the reporting requirement are pretty lax, in my opinion.
Apparently these filters consist of a two piece design, held together by a fastener. At least four different manufacturers use this same design. Allegations are that the clamping system can become loose and not properly hold the two pieces together. Most of these filters have air relief valves that can fail to release all of the built up air. These two problems can add up to filter top turning into a missile and killing or seriously injuring the person who is inspecting or servicing the unit. A safer alternative involves a series of bolts that hold the two parts together. If you own a pool, I would recommend contracting the service and inspection of the pool out to a professional.



