The PRO-Line Auto Top-up system is installed with a simple float mechanism with waterline mark. When the water level in your pond drops below the set level the unit will let mains water through and continue to fill the pond until the water level is back up to the desired set point.

The system comes complete and consists of-
Water level sensor
2 x “Click fit” hose connectors
Control box
Low voltage power supply
Water tight connection for power