The Lawn Sprinkler System
Overview
At the risk of stating the obvious, the sprinkler system is designed to water lawn areas.
At a high level, it consists of:
- Two well points and the pipes from those feed a check valve. From there, the water flows to the water pump.
- The water pump feeds a network of pipes that distribute water to sprinkler heads distributed along pipes dedicated to each zone.
- Two valve boxes, each one with a subset of electronic valves. Each valve controls water flow to one zone
- Multi-conductor wire conduit, typically buried in the same trench as the pipe that delivers water to each valve box, carries the power signal that directs the opening/closing of each zone’s water valve. One conduit per valve box controls the valves in that box.
- A main control box that, on a schedule, turns the pump on/off when necessary to deliver water to each zone. Only one zone can be open/sprinkling at a time. The controller box connects to Home Assistant (or vice-versa). The schedule is controlled by the control box. A phone app is used to modify the schedule or control a zone manually if needed during sprinkler head maintenance, etc.
- A relay switch that turns the pump’s power on and off as controlled by the controller.
- Sprinkler heads located throughout the lawn
The physical locations of system components will be documented so:
- Their existence is known
- They can be identified in the field
- Prevent accidental damage by digging in the wrong place, for example.
More details on how and when they are used will be documented on the supporting pages.
TODO
- Document
- the location of the well points and pipe feeding the well pump
- the location and pipe routing for each of the seven zones, including locations of valve boxes and which zone each valve controls
- the location and workings of the rain sensor.
- information about the company that installed the system. They might still have some access to and control of the controller box