The IBS-4 is used mainly with existing pools when the width of the pool tapers off towards the bottom.

A separate pit for the roller system is not necessary. In combination with a tubular motor, no motor pit is necessary either.

The roller system is mounted directly below the surface of the water.

Construction: Mounted directly below the surface of the water
Installation: New or retrofitting
Maximum size: 25 m x 50 m (larger sizes depending on the pool shape).
Drive unit in separate motor pit: Drive unit mounted on the shaft or chain drive
Drive unit without motor pit: Tubular motor (not always possible, dependent on pool width)
Cover-slats: Standard slats 60 mm wide and 14 mm thick
Guidelines: Installation approved only for private pools