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DENVER — As the grass begins to turn green across the state, many are wondering when is the best time to turn on a sprinkler system.

Denver Water recommends waiting until after the last freeze, typically around May 5, to turn on your sprinkler system.

Lawn experts say that when the grass begins to turn green, it is time for watering. Those who choose to wait to turn on their system should bring out the garden hose and hand-water grass, trees and perennials, said Denver Water.

When you do decide to turn on the sprinkler system this spring, here's how to get started.

The first step is to locate your irrigation box. It's usually out in the front of your house.

Open it up and look for the drain valve. Turn it off by turning the valve to the right. Cover box back up.

Now, go to your back flow preventer to keep your water from your sprinkler system from going back into the drinking water inside your house.

Look for your ports. It's the area where the sprinkler company blows out excess water in the fall.

You will need a flat blade screwdriver. Turn a quarter of a turn so they are against the pipe, which means they are closed. Make sure they are not parallel to the pipe.

Now open your ball valves. Turn the handles to the left so they are parallel to the pipe.

Locate your style ball valve. It is usually in your basement.

Tighten your port before you turn your water back on or you will have water gushing into your basement.

Open your water valve by turning it right so it is parallel to the pipe.

This is usually located in your garage.

Each system is different so find directions or go online to find an owners manual to set your sprinkler system. 

If you don't feel comfortable turning it back on yourself, be sure to contact a professional.

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