Swimming pool cover normally lies at botton of pool with inflation of air chamber used for raising cover to water surface

摘要

The swimming pool cover (12) has a number of plastics hollow profiles (14) which are coupled together, to provide a cover with a specific density of more than 1 g/cubic cm, allowing the cover to sink to the bottom of the swimming pool (10), the specific density of the cover reduced by inflation of at least one air chamber, so that the cover floats to the surface. The air chamber is provided by an inflatable hose contained within the hollow profiles