CWITM
Container Irrigation System
CWITM is Planter Technology's container irrigation solution designed to be dropped into most cylindrical and slightly tapered decorative containers, for both interior and exterior pots and planters. The CWI uses Planter Technology's proven vacuum-sensor technology to precisely monitor the soil moisture level, irrigating the plant only when the soil starts to dry. It allows for extended hand-watering intervals, typically 2 to 4 weeks for interior plants and 1 to 3 weeks for exterior plants, depending on the plant and the surrounding conditions. The addition of an overflow drainage adapter allows for use of CWI in exterior applications, and prevents the drainage of irrigation water during normal use.
- Keeps plants healthy, strong and stress free by balancing moisture and oxygen levels in the soil at all times.
- Closed system prevents possibility of water damage for interiors/ Exterior drainage adapter allows excess rainfall to overflow, and prevents drainage of irrigation water during normal outdoor use.
- Largest reservoir of any sub-irrigation system allows longest intervals between refilling.
- Perfect solution for exterior applications where drip irrigation doesn't work.
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CWI Training & Technical Information: |
Details
How the CWI Works
The CWI reservoir is filled by hand every 1-4 weeks (2-4 weeks interior, 1-3 weeks exterior). The fill hole is closed with a stopper, creating a vacuum-tight closed reservoir.
When the soil is dry (indicating the plant needs water), the moisture sensor allows air to pass through the tube into the reservoir, allowing water to flow into the container from the bottom. The water wicks up through the soil, irrigating the plant.
As the soil becomes moist, the sensor (planted in the soil 1/3 to 1/2-way down the container) absorbs water. When wet, it acts like a valve, blocking the flow of air through the tube. A vacuum is created above the reservoir, preventing further watering until the soil begins to dry again.
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Model Specifications
| Model | Outside Dia. Top/Bottom | Inside Dia. | Overall Ht. | Inside Ht. | Water Capacity | Case Pack |
| CWI-600 | 6.75"/5.5" | 5.75" | 5.75" | 5" | 1.75 Pints | 32 |
| CWI-750 | 8.75"/7.5" | 7.75" | 6" | 5.25" | 1 Quart | 24 |
| CWI-800 | 9.62"/8.75" | 7.5" | 7.5" | 6.5" | .6 Gallon | 24 |
| CWI-1000 | 11.25"/9.5" | 9.5" | 10" | 8.75" | 1.0 Gallon | 16 |
| CWI-1200 | 12.5"/11.25" | 11" | 11.38" | 9.5" | 1.5 Gallons | 12 |
| CWI-1400 | 15.75"/14" | 14" | 14" | 12.75" | 2.0 Gallons | 6 |
| CWI-1650 | 18"/16" | 16" | 16.75" | 15.25" | 4 Gallons | 3 |
| CWI-1700 | 18.5"/17" | 17" | 18.25" | 17" | 4.5 Gallons | 3 |
| CWI-2200 | 23.25"/21" | 21.25" | 19.75" | 18" | 8 Gallons | 1 |
For vase-shape and tapered planters, see CWI ClassicTM container irrigation.
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CWITM Accessories
BioGuard Root Control Squares – A simple way of preventing roots from growing into the water reservoir, extending plant life.
CWI Field Manuals – In English or Spanish
CWI Spare Parts – Spare stoppers, sensors and grommets for use with all CWI Classic sizes.
Funnels – Inexpensive plastic funnels or high-speed metal funnels for use with all watering cans.
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