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Irrigation Guide

Irrigation

Irrigation is all about getting the right amount of water where you need it when you need it. A well desinged irrigation system reduce water usage by watering effeciently. There are two basic types of Irrigation: Sprinklers and Drip. Sprinklers come in a wide variety of shiapes and sizes to suit your project. Matching the right sprinkler to your applicaiton is essential. Drip irrigaiton is designed for lower pressure applications and longer run times. Many people think of drip irrigation being small scale as in shrubs and gardens. Drip technology is used extensively in agriculture on a much larger scale but it is still drip.

 

There are some great resources available on the web for irrigation and rather than repeating that info we will provide a series of links:

Residential

Blu-Lock System

Toro Sprinkler Guide

Rainbird Learning Centre

Rainbird Sprinkler System Guide

 

 


Anatomy of an Irrigation System

 

 

Main Supply (Source)

This is either a municipal water supply or a well (Gulf Islands, Rural). The water source will have a capacity in both gallons per hour(GPM) and pressure (PSI)and an irrigation system must suit the capacity of the supply. In the case of a municipal connection you will need to connect on the private water service line and your connnection must be connected by a double check back flow preventer. BC Building code requires a permit to make this connection and it must be done by a qualified backflow installer.

 

  • Municipal Connection

     

  • Backflow
  • Backflow Installed
  •  

    Main Line

    • The main line is under constant pressure and needs to be constructed of high quality piping and associated fittings. The types of pipe used for main lines include
      Municipal Polyethelyne
    • PVC Schedule 40
    • PEX

    Manifold

    The main line is connected to a manifold. A manifold is a pipe or chamber that has a number of opening. In an irrigation system there will be one opening for each valve/zone.

     

     


     

    Latterals

    The latterals are only under pressure when you are watering/valve is open. As there is less strain a less expensive pipe is normally used. These pipe are:

    • Blu-Lock (an associated push fit fittings)
    • PVC Schedule 200
    • Prime Polyethelyne

    Irrigation Controllers

    There are a large number of controllers available in the market. The sophistication ranges from single zone battery timers that can be used in places without power to systems that are connected to the internet an control dozens of sprinkler zones. Typical residential controllers control from 4 - 16 zones and have a variety of features. Drop by and we'll help you choose a controller that is right for you.