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DIY School

Step1: Gathering Information

· Prior to starting, to gain an overall view of what is required, and to make sure your sprinkler system will provide proper coverage of your yard.

· You need to gather the following information about your water supply: How many sprinklers your system can run at one time depends on how much water your home can supply.

 

A. Water Meter & Service Line Sizes

You may or may not have a water meter, if you do, the size of your meter is usually 5/8”, 3/4” or 1”. The size may be stamped on the meter. If not, your water company will have the information.

The service line is the water pipe running from the street to the house. To determine the correct size, first find the copper or plastic pipe where it enters your house through the basement. There will be a shut off valve located close to the source. Wrap a string around the pipe just before the valve and measure the string length. Use the chart below to determine the diameter of the line:

Length of String	2 3/8”	3”	3 1/8”	3 7/8”	4”
Size of Copper Line	1/2”		3/4”	1”
Size of  Poly B Line		3/4”			1”
Size of  Pex Line

 

B. Pumping Systems:

· Many rural homeowners rely on wells as a source of water. It is common to run a 1” polyethylene line from these wells to the house.

· Pumps are usually sized according to the depth of the well, and the water available. If you are not aware of the size of and capacity of your pump, it will be necessary to contact your local pump supplier. They will need to know the serial number and model number of the pump. Design your system to the pressure ( p.s.i. ) and flow capacity of your pump.

 

C. Static Water Pressure:

· Water pressure is measured in pounds per square inch ( p.s.i. ) static. Water pressure is obtained at the outside faucet when no water is running in the house. The pressure may be read by attaching a pressure gauge to the outside faucet, with the faucet completely open. Do this two or three times at the times of day that you will be watering, then use the average reading.