Blog by Aarohi Gaikwad | July2026
Introduction
Drip irrigation is one of the most efficient water application methods which can supply 85–95% of the applied water directly to the crop roots of Indian farmers. However, a poorly maintained drip system can work the other way around and slowly become less efficient, resulting in loss of water and reduction in yield without the farmer even knowing it. This blog outlines how to test your drip irrigation system for proper operation, signs to watch for, and some of the typical issues and their solutions to avoid expensive problems..
Why Drip System Maintenance Is Often Overlooked
Many farmers install a drip irrigation system (some of them with government subsidies under PMKSY) and imagine that it will work well and efficiently without their active involvement. This is the most frequent error: Under certain water pressure conditions, drip systems are mechanical systems. With age, the sediment and mineral deposits can clog the drippers, lateral pipes can crack or be chewed by rodents, filter screens can become clogged, and pressure imbalance can occur across the field. However, these issues are not immediately apparent from afar. When a farmer is walking through a field, and notices that there is green crops, he assumes that everything is OK — only to realize that there are half the drippers clogged and that plants in half the rows are not getting the water they require. Once the first signs of yield loss are seen at harvest, the crop has suffered damage for an entire growing season.
Your Drip System Health Checklist
Use the table below as a regular maintenance checklist — ideally checked every 15–30 days during the cropping season. Each component, its warning sign, likely cause, and fix are listed clearly:
|
What to Check |
Sign of a Problem |
Likely Cause |
Fix |
|
Drippers / Emitters |
Dry soil around plants |
Blocked or clogged dripper |
Flush or replace dripper |
|
Lateral Pipes |
Puddles or wet patches |
Pipe crack or rodent damage |
Replace damaged section |
|
Filter Unit |
Low flow or uneven pressure |
Clogged filter screen |
Clean filter every 15–20 days |
|
Water Pressure |
Some plants get more water |
Pressure imbalance in system |
Check pump & pressure gauge |
|
Main Header Pipe |
Water loss at connections |
Loose joints or fittings |
Tighten or reseal joints |
|
Fertigation Unit |
Uneven crop growth |
Fertiliser not mixing uniformly |
Flush tank, check injector |
Step-by-Step: How to Check Your System in the Field
The best way to verify that your drip system is operating correctly is to operate the system at normal pressure and to walk each lateral line from one end to the other. Check each component individually, beginning at the pump and moving outwards. First, check the filter unit. If the pressure on the outlet side of the filter is significantly less than the pressure on the inlet side, the filter screen is partially obstructed and should be cleaned. Most disc and screen filters that are a part of an Indian drip system should be flushed every 15-20 days or more regularly if the water source has sand or organic material. Then, check each lateral pipe for puddles, waterlogged soil patches, or dry patches of soil that are unusually dry. If puddles form around the pipe, it has a crack or a broken joint. Dry patches are a sign of clogged drippers. If water does flow when you pinch it at the lateral, it's clogged at the dripper and should be flushed or replaced — if there is no water coming out from the dripper, then it is clogged at the lateral and needs to be flushed or replaced. Lastly, monitor water pressure at the end of each lateral. The simplest of pressure gauges, which costs less than ₹500, can be used to determine if