That being said, we do have one super easy to use timer the Logica timer by Claber, which has 15 preset programs. One of the benefits of Bluetooth and WiFi is that you can program from your phone, iPad, or computer through very intuitive programs. So as you can see, knowing your PSI will go a long way in helping when choosing a timer/controller.īefore the introduction of Bluetooth and WiFi, this used to be more of an issue. Low pressure valves need a minimum of 10 PSI while others need at least 20 PSI to operate well. PSI relates to controllers indirectly as controllers do not operate on pressure however, the valves they control do and valves will need much higher pressure to function correctly than hose-end timers. This works great in low flow situations such as a gravity set-up. Most of these units require a minimum of 7.3 PSI to function properly however, Claber offers the Select model 8423 that operates with a PSI as low as 2.9. Let’s start by reviewing ‘Hose-end Timers’. If you are planning on using a hose bib as your water source, then you will want to look at ‘hose-end’ timers.Īll timers and valves require a minimum amount of PSI to operate correctly. For example, if you are using AC valves, you will need to make sure that your controller is also AC. These units come in either AC or DC and you will need to make sure that your valves and controller are compatible. A controller needs to be wired to one or more electronic water valves that control each zone. If you are working from a manifold valve system off your main water line, you will need to look at controllers. It may seem overwhelming but by answering a few basic questions, you will be able to narrow down your options very quickly. You will see PSI mentioned in just about every application of an irrigation system and timers/controllers are no different. PSI aka Pounds per Square Inch - PSI is what we use when referring to water pressure.Zones - This represents the number of independent watering zones you have.Start times per day - This is the number of times per day you will be able to water.Ambient Light - Does require direct sunlight to capture enough light to operate.Bluetooth - This feature allows you to connect to your timer/controller via your smart-phone or iPad but usually only within about a 30 feet range from the device.WiFi - This feature allows you to connect to your controller from anywhere via the internet.Rather than oscillating back and forth, DC provides a constant voltage or current. Direct current is a bit easier to understand than alternating current. AC is used to deliver power to houses, office buildings, etc. As a result, the voltage level also reverses along with the current. Alternating current describes the flow of charge that changes direction periodically. These systems can be either AC or DC and it is important to match valves and controllers to the same current. Controller - more often refers to units that connect to a valve manifold system.
![galcon 9001 dc galcon 9001 dc](https://abpcdn.pstatic.gr/P/bpimg48/1L82Y/1LfgVu_SX250Y250/2155303207/galcon-ac-12s.jpg)
All ‘timers’ are designed to attach to the standard faucet, hence the term hose-end. Hose-end - This term refers to the threads of a standard outdoor faucet, which is a ¾ inch male hose thread.
![galcon 9001 dc galcon 9001 dc](https://i.ebayimg.com/images/g/F3wAAOSwkLddSMpZ/s-l300.jpg)
These units will attach to a standard hose faucet, also known as a ¾ inch hose thread connection.