MAGHAKYAN BOTANIC
Maghakyan Botanic
Answers to common questions about plant care, landscape design, greening, and drip irrigation from Maghakyan Botanic in Armenia.
The most common problem in drip irrigation systems is clogged emitters. This can occur due to sediment in the water (sand, rust), algae, or mineral buildup (limestone). Clogging obstructs the even flow of water and can harm plants.
For basic repairs, you might need: sharp cutters or scissors (for cutting tubing), replacement fittings (connectors, end caps, elbows), a hole punch tool (if using individual emitters), replacement emitters, and possibly stakes to secure tubing in the ground.
If the tubing is damaged or cut, cut out the damaged section with sharp cutters. Then, use a barb coupling to connect the two ends of the tubing. If the damaged section is large, you can cut it out and insert a new piece using two fittings.
To remove mineral buildup, the system can be flushed with a mild acidic solution, for example, a mixture of water and white vinegar (approximately 1:1 ratio). Connect the solution to the system, let it sit for a few hours, and then flush with clean water. There are also specific commercial solutions for this purpose.
To remove air from the system, simply open the end caps at the end of each drip line and allow water to flow until a steady stream is achieved. This process is called "flushing" and is typically done after installation or at the beginning of the season.
If animals (rodents, other pests) have damaged the tubing, replace the damaged sections. To prevent similar issues in the future: bury the system underground (where possible), use durable, rodent-resistant tubing, or apply animal repellents.
Pressure problems can manifest as uneven water flow from emitters, lack of water from some emitters, or a drop in the system's starting pressure. You can use a pressure gauge to check the pressure near the water source or at various points in the system.
Professional help might be needed if: the problem is complex (e.g., severe damage to the main pipeline), you cannot identify or solve the issue yourself, or if a system design modification is required. For large systems or complex malfunctions, a specialist can save time and money.