Deep Water Culture-DWC Hydroponics

This is another type of hydroponic technique called Deep Water Culture. DWC saturates the roots in a supply of nutrient solution while also adding oxygen to prevent suffocation of the roots. Deep water culture systems vary in size, each plant can have an individual unit, or you can grow a number of plants in the same container. The size of the container determines how much buffer capacity the system has, a bigger container will lead to more stability in temperature, pH and EC. The drawbacks of having large containers is that it requires a lot of water to fill them, and in some cases, a lot of energy to heat it to a suitable temperature.

The most important thing to remember is that the water in a DWC must have constant oxygenation. This can either be done by using a venturi type air inlet on the circulation pump, or by using air pumps. The air can also be added into the root zone directly which is even better than just oxygenating the nutrient solution. DWC is especially suited for places with high daytime temperatures and cooler nights.

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