What is 'ET' (evapotranspiration)?


Evapotranspiration is a proven scientific process used to calculate the loss of moisture in the soil through evaporation and plant transpiration.


What is the importance of real-time weather data?


When dealing with local climate patterns, it’s often the case that weather changes at a moment’s notice.

This means the landscape receives water exactly when it needs it;

no sooner, no later.

Real-time data is more accurate than daily summaries of weather data.


What are 'smart' irrigation controllers?

Conventional irrigation controllers water on an arbitrary pre-programmed schedule (typically three times a week during the summer, whether the landscape needs it or not).

Smart controllers use ET data to ensure the right amount of water is applied at the right time.

ET controllers use  ET data and rainfall to ensure the right amount of water is applied at exactly the right time. It does not water when it is raining.

Why should I install a 'smart' controller?

It saves water, its saves your system, and it saves money.

It is good for the environment, creates healthier landscapes and reduces carbon footprints.

Do we need any more reasons?

How does a 'smart' controller make watering my landscape easier?

You never have to adjust your schedule to take into account changing climatic conditions, including rain and freezing temperatures.

How will installing a 'smart' controller save me money?

You will enjoy a significant reduction in water use because your irrigation will only come on when the soil needs it and not because the conventional timer has it programmed for a set amount of times per week.

In addition to water savings, it also cuts down on fertilizer and maintenance costs.

Can I install a 'smart' controller myself?

Yes, but it is not advised.

It can be complicated.

What is a typical return on investment?

1 to 2 watering seasons, dependent on your specific water rates.

What is the difference between 'central control' systems and 'smart' controllers?
The differences are primarily in the automation and application of the systems.

Where a central control system is a supervised command unit that can either be on or off site, a ‘smart’ controller is a fully automated control unit that operates independently of human interaction.

Do I need to connect my 'smart' controller or 'ET' product to a computer to make changes?

Most ET products can be adjusted manually on the device itself. However, any changes should be done by a professional trained in the operation of that product.

What if I have to turn off my system for a day?

While procedures for this vary from product to product, it’s usually sufficient to turn the irrigation controller off.

If you would like to stop water on the same day every week (to accommodate landscape maintenance), most controllers have the option to turn off on specific days of the week.

How vulnerable are 'ET' products to a lightning strike or power outages?

Most ET products have non-volatile memory, meaning their settings are not affected by power outages or surges.

Those that do not are usually equipped with a battery connection that will help prevent loss of data.

It is absolutely vital that ET products be grounded to their power supply.

Will a 'smart' controller turn on my sprinklers during the day?
If properly installed, No.
Will a 'smart' controller help reduce run-off?

Because a properly-programmed ‘ET’ product is designed to only apply as much water as the soil can contain, run-off should be significantly reduced, if not entirely eliminated.