Complete Sander Technique for a seal system of about 400 m³ (3 pools - see pict. at the left).

• 2 x Helgoland Skimmers 1500 x 4500
• 1 x Ozone Generator Multizon 200
• 2 x Pump Stations
• 1 Central switchgear with memory programming control and modem connection

The pictures show:

• view on the audience
• underwatersight into the main pool
• the "water fountain", the return flow from the skimming unit