Anti-Flood Device Plug – no more floods!
This unique device is a plug which opens when the head of water over it reaches a certain level. It is intended to prevent bath overflow. The design has a significant advantage over conventional (built-in) overflows in that the emergency outflow takes place under a very much greater head and thus at a very much greater flowrate. The device will be able to “keep up” with continuing inflow to a greater degree than a conventional overflow.