Quick answer
Connect the EarthBox Automatic Watering System to your outdoor spigot, install the pressure regulator to maintain 15-20 psi, and run 1/4 inch tubing to each EarthBox for consistent, hands-off watering.
Why consistent pressure matters for your EarthBox
The EarthBox Automatic Watering System relies on steady water pressure to deliver the right amount of moisture to your container garden. Without a pressure regulator, fluctuations from your outdoor spigot can cause uneven watering or even damage the system. The EarthBox Pressure Regulator attaches directly to your water source and keeps pressure between 15-20 psi, which is the sweet spot for the 1/4 inch tubing to distribute water evenly across multiple EarthBoxes.
If you are connecting more than one EarthBox, the 0.25 inch tubing roll (100 ft) plus the included straight connector lets you expand the system without buying additional kits. Just remember that the tubing is designed for low-pressure drip irrigation, so never skip the regulator even for a single box.
Choosing between the full system and individual parts
The EarthBox Automatic Watering System kit (product ID 2551347) includes everything you need to start watering one EarthBox: the main assembly, tubing, and fittings. It is a cost-effective choice if you are setting up your first box. However, if you already have an EarthBox and just need to expand, the 100 ft roll of 0.25 inch tubing (product ID 2551314) and a separate pressure regulator (product ID 2551321) let you add more boxes without buying a full kit each time. The tubing roll also comes with one straight connector for joining lengths.
One limitation: the catalog does not specify whether the full system kit includes a pressure regulator, so check the product description before ordering. If you are unsure, buying the regulator separately ensures you have consistent pressure from the start.
Step-by-step setup for your EarthBox Automatic Watering System
- Attach the pressure regulator to your outdoor spigot: Screw the EarthBox Pressure Regulator onto your hose spigot or faucet. Make sure the threads are snug but not over-tightened. This regulator will keep the water pressure between 15-20 psi, protecting the tubing and ensuring even flow. Common mistake: skipping the regulator. Without it, high household water pressure can burst the 1/4 inch tubing or cause uneven watering.
- Connect the main automatic watering system assembly: Attach the EarthBox Automatic Watering System assembly to the pressure regulator using a standard garden hose. The assembly includes the valve and connector that will distribute water to your EarthBox. Checkpoint: ensure all connections are hand-tight and use Teflon tape if you notice any leaks at the threads.
- Run the 1/4 inch tubing from the assembly to your EarthBox: Cut a length of the 0.25 inch tubing long enough to reach your EarthBox without kinking. Insert one end into the assembly's outlet and the other end into the EarthBox's watering port. If you have multiple boxes, use the included straight connector to join tubing sections. Common mistake: cutting tubing too short. Leave a little slack so the tubing can move without pulling loose from the EarthBox port.
- Test the system and adjust flow: Turn on the water at the spigot slowly. Check for leaks at every connection point. The EarthBox watering port should slowly fill the reservoir. If water flows too fast or too slow, adjust the spigot valve slightly or inspect the regulator for debris. Checkpoint: wait 10 minutes after turning on the water to confirm the reservoir is filling at a steady rate, not overflowing.
- Maintain the system for long-term use: Every few weeks, inspect the tubing for cracks or blockages, especially near the EarthBox port where algae or dirt can build up. Flush the system by running water through the tubing without the EarthBox attached. Replace the pressure regulator if you notice pressure fluctuations. Empty takeaway
Product facts
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EarthBox Automatic Watering System: The EarthBox Automatic Watering System is made in the USA and designed to conserve water by establishing a constant water source to your EarthBox container garden. This system lets you set it and forget it, reducing daily watering chores while preventing water waste.
EarthBox Automatic Watering System
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EarthBox Automatic Watering System Pressure Regulator: The EarthBox Automatic Watering System Pressure Regulator attaches to your outdoor water source and maintains a constant pressure of 15-20 psi. Consistent pressure prevents over- or under-watering, which is critical for healthy plant growth and system longevity.
EarthBox Automatic Watering System Pressure Regulator
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EarthBox Automatic Watering System 0.25" (1/4") Tubing - 100 ft. roll: This 100 ft roll of 0.25 inch tubing includes one 0.25 inch straight connector to expand your EarthBox Automatic Watering System. The long roll gives you flexibility to reach multiple EarthBoxes across your garden, and the connector makes it easy to join sections without leaks.





