Which components are included in a drip irrigation system?

In a drip irrigation system, both advanced treatment and an air release valve play significant roles in ensuring optimal operation. Advanced treatment refers to the process of treating wastewater to a level suitable for irrigation. This is crucial because drip irrigation is often used with effluent from septic systems or other treatment facilities, making it imperative to ensure the water used is sufficiently treated to prevent health risks and environmental contamination.

The inclusion of an air release valve in a drip irrigation system is also important. This component allows for the release of air that may become trapped in the irrigation lines. Trapped air can hinder water flow, resulting in less efficient irrigation and uneven distribution of water, which can negatively impact the plants being irrigated. Therefore, having an air release valve is necessary for maintaining consistent pressure and flow within the system.

While the grinder pump is a key component in some wastewater systems for moving effluent, it does not typically form a part of a standard drip irrigation setup. Thus, the correct answer encompasses both the necessity of advanced treatment to ensure safe water quality and the functionality of an air release valve to maintain proper hydraulic conditions within the irrigation lines.