Drip Irrigation for Raised Beds
A simple drip system that waters raised beds slowly and evenly at the root zone, saving water and preventing disease.
Estimated cost
$60 – $120
Estimated time
1 – 2 hours
Lifespan
5–7 years for tubing; 1–2 years for emitters
Soil needed
None — irrigation system
Weight empty
5–10 lbs
Weight full
N/A
Best for
All raised beds, especially tomatoes, peppers, squash, and melons
Placement
Run the main line along the path, not through the bed, so you can weed and harvest easily.
Boards to Buy
| Boards to Buy | Quantity | What You Use Them For |
|---|---|---|
| 1/2 inch mainline tubing, 100 ft | 1 | Header line |
| 1/4 inch emitter tubing, 50 ft | 2 | Runs down each bed |
| Pressure regulator, 25 PSI | 1 | Protects emitters |
| Hose-thread filter | 1 | Catches debris |
| Barbed fittings and end caps | 1 kit | Connections |
- ·Battery-powered hose timer
- ·Tubing stakes or landscape pins
- ·Goof plugs for leaks
Steps
- 1Attach the pressure regulator and filter to the hose bib.
- 2Run the 1/2 inch mainline around the perimeter of your beds.
- 3Punch holes in the mainline at each bed using a hole punch.
- 4Connect 1/4 inch emitter tubing with barbed fittings and run it down each row.
- 5Space emitter lines 10–12 inches apart for even coverage.
- 6Cap the ends of each emitter line.
- 7Secure tubing with stakes and test the system.
- 8Set the timer for early morning watering.
Tools needed
- ·Tubing cutter or sharp scissors
- ·Tape measure
- ·Hammer for stakes
Common mistakes to avoid
- ·Emitters spaced too far apart — roots never get full coverage
- ·No pressure regulator — high pressure blows emitters off
- ·No filter — particles clog emitters in one season
- ·Forgetting to flush and drain the system before freezing weather
Maintenance tips
Flush lines monthly. Clean the filter weekly during heavy use. Store the timer and filter indoors in winter.
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