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Simple Technology - That Works!

The brain of Ooze TubeTM technology lies in its unique drip emitter system. In the photo at left, you see a standard Ooze TubeTM emitter that has been disassembled into its two pieces: a core and a body.

As you can see, the core has a spiral flow path of precise dimensions. While the actual opening is fairly large in terms of cross-sectional area, the length of the flow path is relatively very long. This results in pressure drop as water flows from the emitter body inlet to the emitter body outlet. In many respects, it is just like running water through a very long pipe - the longer the pipe, the less water flow through it for a given inlet pressure.



When the assembled emitter is inserted into the "belly" of the Ooze TubeTM, the pressure at the inlet of the drip emitter is 0.32 psi (or 9" of water). This pressure is caused by the height of the water "above" the emitter.


As the Ooze TubeTM empties, the water level in the bag drops very gradually. As the water level drops, the inlet pressure on the drip emitter also drops proportionately. This gradual reduction in pressure causes the drip emitter to very gradually wean the tree off water. Our engineers have affectionately named this principle as "Parabolic Water Weaning".

From your tree's perspective, it "thinks" it is getting rain as shown in the graph shown at left. During the first few days, the Ooze TubeTM gives the tree an abundant amount of water. This recharges the tree's energy reserves.

At some point, the tree starts to notice that its abundant water supply is being gradually reduced. From a position of optimum energy, the tree starts sending out feeder roots, looking for more.

Towards the end of the cycle, the tree may start to show some signs of stress. During this time, it is still aggressively sending roots, attempting to survive.

Your goal is to refill the Ooze TubeTM to recharge the tree's energy reserves, before it "runs out of gas."

In our experience, and after talking to literally hundreds of wholesale growers (whose job is to fill containers with roots), these repeated cycles of recharging and stressing is the fastest and most efficient method of developing a self sustaining root system. The side benefit is that you, the tree installer, don't have to haul water nearly as often!


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Copyright 2007 Engineered Watering Solutions
Last modified: 12/07/07