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Sub Irrigation Guides....Send requirements for quotes.

Several styles and brands - something for every application.



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Container Irrigation System Function

See below for Info and details on Planter Technology’s self watering systems.... 



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.



The manual Controlled Watering System

Hand-fill Container Irrigation - How It Works

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 Planter Technology’s CWS Manual Container Irrigation system is based on a concept that reaches back to 1972. We were the first company to perfect a system to help maintain pots and plants of all types, and are still the leading player in the marketplace. The CWS system has been used in hundreds of thousands of installations all over the world, and has proven itself to be the easiest to use, most reliable system in the world.

Our (available) Instructional Video will also give you a short introduction into how the system functions. Whether on our CWI- or CWM-type container irrigation systems, our SeaCrest Series or Natural Spring decorative planters, or our CWS Planter Liners, the system functions in the same way.

If you need a brief written explanation of the system:

The CWS consists of a double-walled container (or a modular reservoir, in the case of the CWM), with a moisture sensor extending from the top of the wall. Water is filled through a hole at the top of the reservoir, and closed with a stopper of some sort. Water flows into the soil mass through small holes at the bottom of the reservoir. The water wicks its way up through the soil (using the soil’s own natural capillary action) until it reaches the white tip of the moisture sensor. The sensor absorbs water from the soil, and blocks the passage of air through the tube.

A vacuum develops above the water in the reservoir, which prevents water from flowing out the holes. The valve action of the sensor provides for an optimal balance of moisture and oxygen in the soil. As the plant draws moisture from the soil, the sensor begins to dry, and releases air into the reservoir. The watering process starts all over again.


Exterior Applications

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As rain falls, water builds up at the bottom of the container. Because the soil is moist, the sensor is closed, and no water is allowed out of the reservoir. When the rainwater reaches the top of the overflow drain, the excess will drain out. After the rain, the system dries down until the sensor opens up, and the irrigation starts over.