The Tsunami AT1 uses a powerhead or pump to keep a constant level in a sump. When the water level in the sump drops 1", the AT1 will turn on the reservoir pump and turn it off after the sump fills up 1".
- Prevents main pump from running dry
- Holds sump levels constant
- Reduces salinity fluctuations
- Includes water level sensor
- Circuitry designed to UL specifications