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Traditional Flood Floors:

In the traditional style the growing area has concrete poured in a shallow “v” shape that fills and drains to the centre of the length of that area. The centre of the “v” is usually 1 to 1 ½” lower than the edges. Water is pumped up the buried supply until the depth at the top of the “V” has been achieved. It is then allowed to drain through that same supply pipe back to the tank from which it came.

Typically, this system requires about 5 minutes to fill enough water to that the pots on the edges are in 1 1/2 “ of water and 7 minutes to drain away (this varies due to floor size and pump sizing) the capillary action of the plants only allow them to draw up what is required to reach the saturation point of it’s media even though the plants in the centre of the floor are in water much longer than the edges.

They should all achieve an equal amount of water in the pot if given enough time for that action to be completed. This style of floor has an advantage for growers of larger pots and/or nursery stock because of the depth of water than can be achieved.