If your sprinkler system is not getting water, there may be several reasons: The return flow may still be disabled. If the handle of your own check valve is inadvertently closed, this will prevent water from flowing past the main return to the sprinkler system valves. Your rain sensor may be defective.
Submersible lawn and landscaping systems may sound complicated, but the principles behind how they work are actually quite simple, and little understanding of the whole system is required.You will help you understand the dilemmas that may arise. With rare exceptions, almost all owners find it possible to fix these problems on their own, but the first step is to identify the root cause of the problem, and that starts with understanding the areas and how they work together.
Before We Start
A buried lawn sprinkler system consists of several main components. In a typical system, plumbing or pipe from the main water source first passes into a valve box at surface level, where it is divided into subsurface irrigation zones, each controlled by its own zone valve. The area of the valve is usually controlled by an electronic controller that controls the time and duration of each low-voltage water supply session. Smaller homes may have only one watering zone, but most have two, three, or more.
The section valves themselves consist of a diaphragm that regulates the flow of water; The membrane can be opened and closed on signals using a solenoid, installedfoot on the sectional valve. The solenoid operates a spring-loaded metal piston that opens or closes the filtered water port through a valve. Irrigation room valves come in many shapes and designs, including models with a built-in anti-siphon device. In other systems, the anti-siphon valve must be a separate device installed from the plumbing before it reaches the person’s valve box.
When the zone valve opens, bottled water flows through underground plastic pipes to power the sprinkler heads, which rise and release water onto the lawn and field, no matter how long the controller allows the section valve to remain open.
Problems with the colonic irrigation system usually present with several common symptoms:
Individual sprinkler heads not working
Vacuum pressure in sprinkler heads
Sprinklers not reaching zones
Leak due to inverted local valve
< li>Leakage at the sprinkler head farthest from the corresponding valve.