The competition pool in Zeist is provided with a foil cover on the ceiling. This consists of two axes that are connected in the middle. When rolled up, almost nothing of the cover can be seen because it disappears completely into a niche in the ceiling.
The recreational pool is also partly covered by a foil cover from the ceiling. In addition, a cover is additionally mounted on poles. Together with a special Indubrella cover, the entire pool is covered with an insulating layer, despite its exotic shape.