Ebb and Flow Overflow Valves
Ebb and Flow Overflow Valves allow the grower to set the desired water level on the tables by manipulating an internal stem inside the valve.
The valves prevent the Ebb and Flow tables form overflowing when they are fully stocked with trays and it also eliminates the need to fine tune controller settings. Any excess water on the tables simply flows through the overflow valve and back to the tank regardless of how long the pump is running for.