# Desenhe o seu Sistema

What size of pipe should I use?

The diameter of the pipe depends on the flow passing through it.
For example, for a 1.6 m3/h, you need a 25 mm pipe.
For example, for a 3 m3/h, you need a 32 mm pipe.

What are m3/h, how do I figure them out?

M3/h stands for cubic meter per hour. This refers to the amount of water your irrigation system receives through the pipes in a given time.. To calculate the flow, you simply need a bucket of any size (as long as you know exactly what size it is), a watch with a second hand, and some simple math. Go to the hose bib closest to the water feed coming into your home or building. Make sure there is no water running anywhere inside or outside while you do this test. Turn the hose bib on full blast and place the bucket under the bib. Time exactly how long it takes to fill the bucket. Then, take the size (litres) of the bucket and divide it by the time it took to fill it up (seconds). Multiply by 3.6 and round your answer to the nearest whole number. This is the flow in m3/h coming into your system.

What are bar, how do I figure them out?

BAR stands for kilo per square centimetre and refers to the pressure of water being supplied to your system. Pressure needs to be figured out before you can design an effective irrigation system or submit for our design service. Many home centers, rental agencies or hardware and plumbing stores let you rent a pressure gauge to test your system pressure. Your water company can also tell you the pressure of water being supplied to your residence. Of course, it is always best to take the water and pressure reading yourself in order to provide accurate design specifics. This is especially important in many areas where the water pressure delivered to a residence can be extreme and a pressure regulator must be installed to protect the equipment and ensure good irrigation coverage

Can I mix spray heads and rotors on the same valve?

No, they must be connected to separate valves.

Where can I buy Rain Bird products?