Here is a general demo. We at Ellis Pool
Covers Inc. do not reccomend walking on top of the cover material, except in the
case of an emergency (although one can). Copyright Ellis Pool Covers, 2003.
Video download - low quality (2.3 MB)
QuickTime videos require the Quicktime Player, version 6 or newer. This is free, get it here. 
Ellis Pool Covers Inc. ◦ Sales, service, and local distributor of automatic swimming pool covers in Southeastern New England, (Massachusetts) USA ◦ 14 Roberts Road Plymouth MA USA, 02360 ◦ (508) 746 1701 ◦ Fax (508) 746 1702