Domestic trays  Features & benefits  Price list  Rain canopy  Commercial ground lay systems
Domestic tray systems 

The FlowGrow Hydroponics GFT growing system is a complete hydroponics system which gives all the benefits and advantages of the gravel flow technique in a neat ready to use package. It will produce nutritious fresh vegetables, salads and herbs. It is quick and easy to set up and is simple and inexpensive to run.

It is available in complete systems of two or four square metre growing space, and in a commercial line configuration.
Gravel Flow Technique. GFT is a variation of the Nutrient Film Technique (NFT) developed in the early 1970's. The principle of NFT systems is that a balanced nutrient solution (salts and trace elements in solution) is made available to the plant root system as a 1 to 2 mm 'film'. 
In most NFT systems, this is achieved by flowing the solution down a closed gully without the use of a medium. The plant root system is introduced to the film of nutrient solution through an aperture in the lid of the gully. 

GFT does away with the gully lid, and uses a granite chip medium in the gully. The use of this medium has several advantages.

  • It acts as a 'capillary mat' effectively spreading the solution and allowing for wider growing channels. 
  • It helps buffer the plant against changes in either pH or EC of the solution. 
  • It is a heavy 'anchor' for the plants, allowing large top structures to be supported in only 60mm of medium. 
  • It provides very flexible growing space as plants can be spaced in any pattern or density. Spacing is not restricted to the 'growing apertures' consistent with NFT systems. 
  • Gravel is an ideal medium, being readily available, durable and inert. 
  • The bubbling effect of the solution as it passes through the gravel creates excellent oxygenation of the solution.
FlowGrow system - configuration options.
  • Complete system single tray - two square metres growing space
  • Complete system double tray - four square metres growing space
  • Commercial line tray and table - two square metres growing space
Complete systems 
Single tray system
The single tray system will provide two full square meters of gravel bed. The tray is divided down the center to provide two beds each 2000 mm x 500 mm. It is complete and ready to use. Add the granite stone chip and start planting !

The system is big enough for a small family to grow a lot of their own fresh vegetables, salads and herbs. 

It requires a level area of approximately 3mt x 2mt to allow space for the tank, and for working space around it.
 
 Single tray system without the gravel
Double tray system
The double tray system will provide four full square meters of gravel bed. The two trays are divided down the center to provide four beds each 2000 mm x 500 mm. It is complete and ready to use. Add the granite stone chip and start planting !

The system is big enough for a large family to grow a lot of their own fresh vegetables, salads and herbs. 

It requires a level area of approximately 5mt x 2mt to allow space for the tank, and for working space around it.
 
Double tray system planted out with a selection of vegetables and herbs


Small commercial systems 
Commercial line tray.
The commercial line trays are designed to be used in multiples. They come complete with the support table, and inlet manifolds designed to be joined together and supplied from a common tank using 20 mm ldpe piping. The outlet manifolds are designed to be joined together to return the nutrient to the tank using 25 mm ldpe piping.

Each tray provides two square meters of growing space in two beds each 2000 mm x 500 mm

For small commercial systems (up to 50 sq metre) the trays offer a viable alternative to the conventional pvc plastic ground lay GFT systems as described on our commercial ground lay systems page.
 
 Commercial trays set up in line.
  • They do not require precision ground preparation work.
  • They are much quicker to install.
  • They are not susceptible to puncture damage nor to mole activity damage.
  • They require no maintenance and have a life span many times that of the pvc plastic beds.
  • Being elevated they give additional disease and pest control,and better movement of air around the plants. 
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Domestic trays  Features & benefits Price list  Rain canopy Commercial ground lay systems