What is a common reason for a valve not to close properly?

A valve not closing properly can often be attributed to issues such as debris accumulation or damage to the diaphragm. When debris enters the valve, it can impede the movement of the internal components essential for sealing the valve tightly. This can keep the valve partially open, leading to water continuing to flow when it should be off.

In addition to debris, if the diaphragm itself is damaged or worn, it may not create an effective seal against the flow of water. This can result in pressure inconsistencies and leaks, making it difficult for the valve to close completely.

Understanding these mechanical failures is crucial for troubleshooting valve issues and ensuring the integrity of an irrigation system. Proper maintenance, including regular inspection and cleaning of valves, can help prevent such problems from occurring.