AutoFillTM
Automatic Container Irrigation System
How It Works-
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The AutoFill automatic container irrigation system combines the benefits of sub-irrigation (deep-root watering, water efficiency, drainage control), with the efficiency of automatic irrigation.
The key is the patented AutoFill float valve. Most float valves keep water at a constant level, which don't work in this type of application. The AutoFill valve is different - it opens when the reservoir is empty, and doesn't close until the reservoir is full. It won't reopen again until the reservoir empties, which allows time for the soil to dry down and oxygen to reach the roots of the plant.
The AutoFill system reacts to the moisture available to the plant (either
through rain or irrigation) and the plant's uptake of water (which vary
depending upon environmental factors). It works off a simple mechanical
principle, so there is nothing to adjust - no electricity, wires, or timers.
There is no mimimum line pressure required, so it can work off a gravity-feed
or pressurized line.
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