Unpowered Measured Irrigation Controller
Universal Measured Irrigation Controller
Unpowered Valve Box
Unpowered Valve Box
It is recommended that you watch the YouTube video A major advance in drip irrigation
Key Features
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Unpowered (no batteries, no solar panels, no electronics, no computers, and no WiFi)
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Use for gravity feed or pressurised irrigation
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Use for PC (pressure compensating) drippers or NPC (non pressure compensating) drippers
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Use for subsurface or above surface drip irrigation
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Use for drip tube or drip tape
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The water usage is controlled by the demand from the plants
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The discharge from each dripper during an irrigation event is the same as the average on-demand discharge from a subsurface clay pot since the previous irrigation event
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Adjust the interval between irrigation events by adjusting the float
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The water usage increases significantly during a heat wave
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With a continuous water supply, you can leave your irrigation application unattended for months on end
How to use the Unpowered Valve Box
The Unpowered Valve Box allows you automatically irrigate your garden using gravity feed from an elevated rainwater tank without using a pump and without power. The discharge from each dripper can be set to any value between 285 ml and 612 ml
The interval between irrigation events adjusts automatically to ensure that the discharge from each dripper during an irrigation event is the same as the average on-demand discharge from a subsurface clay pot since the previous irrigation event.
Subsurface clay poy