You are not logged in.


Dear visitor, welcome to SPRINKLER TALK FORUM - You Got Questions, We've Got Answers. If this is your first visit here, please read the Help. It explains how this page works. You must be registered before you can use all the page's features. Please use the registration form, to register here or read more information about the registration process. If you are already registered, please login here.

Attention: The last reply to this post was 4229 days ago. The thread may already be out of date. Please consider creating a new thread.

Message information
Automatically converts internet addresses into links by adding [url] and [/url] around them.
Smiley code in your message such as :) is automatically displayed as image.
You can use BBCode to format your message, if this option is enabled.
Security measure

Please enter the letters that are shown in the picture below (without spaces, and upper or lower case can be used).

The last 3 posts

Monday, July 23rd 2007, 6:31am

by HooKooDooKu

In a closed static system, water pressure is the same everywhere.

But in a dynamic system, you have to account for pressure losses. Basically, when ever water flows through something, it loses pressure (water meter, backflow preventer, valves, pipe). If everything was identical leading to the 5 heads (pipe sizes, pipe length, etc) then the pressure at the 5 rotor heads would be the same. Another way to think of it is that a rotor might need 30psi to properly work. So at least ONE aspect of the irrigation design has to allow a maximum of 30psi pressure loss from your water meter to the rotors.

Irrigation 101:

Monday, July 23rd 2007, 3:36am

by drpete3

The answer is no to all of the above. What are you trying to figure out?

Your pressure has to do with your source of water and how many allons per min it will rpoduce and the pressure at that point.

Are you trying to figure how mwny heads per zone?

Monday, July 23rd 2007, 12:01am

by ahmugz


Complete noobie here.

If the working water pressure is 60 psi from the source and i have 5 rotor heads, does the pressure reduce by 5x ? Or does the pressure remain the same regardless?