Installing Drip Irrigation: Day-by-Day Account
We began laying drip lines across the 2-acre turmeric bed. Here's what worked, what didn't, and what it cost us.
Installing Drip Irrigation: Day-by-Day Account
After weeks of planning, we finally began laying the drip irrigation system across our 2-acre turmeric plot. This was our biggest single infrastructure investment to date — and we want to document every detail.
What We Installed
- Main pipeline: 63mm HDPE pipe — 120 meters
- Sub-main: 40mm HDPE — 80 meters
- Lateral drip lines: 16mm with inline drippers at 30cm spacing — 2400 meters
- Drip rate: 2 liters/hour per dripper
- Filter: 120-mesh screen filter with pressure gauge
Day 1: Main Line Trenching
We dug a 30cm deep trench along the main pipeline route. Labour cost: ₹2,800 for 4 workers, one day. The ground was still soft from recent rain — timing was perfect.
The 63mm HDPE main pipe connects our borewell motor directly to the filter unit at the top of the field.
Day 2: Sub-main and Filter Setup
The filter unit assembly took half a day with the manufacturer's technician. We paid ₹500 for his guidance — worth every rupee. He showed us the correct venturi injector setup for fertigation.
Day 3-4: Lateral Line Laying
This was the most time-consuming part. Each lateral line runs the length of each raised bed — about 40 meters. We have 60 beds in total.
Challenge: The beds weren't perfectly straight (our land leveling is imperfect), so some laterals needed slack loops to accommodate curves. We'll fix this in next season.
Day 5: Pressure Testing and Leakage Check
Ran the system at full pressure (1.5 kg/cm²) and walked every line. Found 3 leaks at connector joints — all fixed with thread tape. This is normal and expected.
Full Cost Breakdown
| Item | Quantity | Rate | Cost |
|---|---|---|---|
| 63mm HDPE pipe | 120m | ₹45/m | ₹5,400 |
| 40mm HDPE pipe | 80m | ₹28/m | ₹2,240 |
| 16mm drip laterals | 2400m | ₹8/m | ₹19,200 |
| Screen filter + venturi | 1 set | ₹4,800 | ₹4,800 |
| End caps, connectors, etc. | - | - | ₹2,860 |
| Labour (5 days × 4 workers) | - | ₹400/day | ₹8,000 |
| Technician guidance | - | - | ₹500 |
| Miscellaneous | - | - | ₹1,500 |
| Total | ₹44,500 |
Wait — we said ₹38,500 in the header. The difference is ₹6,000 we recovered by returning unused pipe from the original overestimate. Final net cost: ₹38,500.
What I'd Do Differently
- Plan lateral lengths more precisely before ordering. We overestimated by 15%.
- Mark bed positions before ordering so pipe lengths are exact.
- Rent a pipe-laying tool — manual laying across 60 beds is exhausting.
Current Status
System is operational. We're running test irrigations daily to calibrate timing and check uniformity.
Next journal entry: soil moisture monitoring and our first fertigation experiment.
All costs are real and specific to our farm in Jharkhand as of July 2024. Your costs may vary based on local rates and distances.