Sep 132012
How to design a lawn sprinkler system

One of the most important aspects of installing a new sprinkler system is the design of the sprinkler system. If your sprinkler system is designed poorly not only will you be unhappy with it’s performance once the sprinkler system is installed, sprinkler systems are expensive. A lot of times thousands of dollars are involved with […]

Aug 152011
Matched Precipitation Rates (MPR)

Click on the image to see an enlarged view. Most of the large sprinkler manufacturer’s produce sprinkler heads with Matched Precipitation Rates (MPR). This simply means that all the heads will water at the same rate on a given sprinkler zone. To be more precise, it is the actual nozzle in the sprinkler head that […]

Aug 082011
Gallons Per Minute

In sprinkler systems, gallons per minute (gpm) or liters per second (L/s) is simply the volume of flow (how much) water is moving through your sprinkler system. If you are installing a new sprinkler system, maintaining your current system, or retro-fitting an existing system you need to know how many gallons per minute are available […]

Aug 012011
What does IPS & Nominal Pipe size mean?

IPS simply means Iron Pipe Size. Piping is a general term used to describe any hollow, cylindrical carrier of liquids. Many piping materials are used to produce both pipe and tubing. Piping and tubing made of the same materials generally use different kinds of fittings. All piping made to the OD (Outside Diameter) of wrought […]

Jul 262011
Flow, Velocity, & Friction Loss

The volume of flow in a sprinkler system is measured in gallons per minute (gpm) in the US, and in liters per second (L/s) metrically. The velocity of flow is measured in linear feet per second (ft/s), meters per hour (m³/h), or liters per minute (l/m). Flow in pipe is always accompanied by friction loss […]

Jul 122011
Static and Working Water Pressure

Static pressure is the pressure when water is motionless. In a closed level piping system the static pressure is the same at every point. There are two way to create static pressure, by elevating water in tanks and reservoirs above where the water is needed and by utilizing a pump. Pumps can be used to […]

Jul 112011
Understanding Sprinkler Hydraulics

Periodically I will be doing posts on understanding how water behaves in your sprinkler system and hopefully this will help you understand what is going on with your sprinkler system when there are problems. In this post I will begin with understanding the basics of hydraulics. Hydraulics is simply the study of fluid behavior in […]