lateral line size


Old 06-16-10, 08:35 PM
Thread Starter
Join Date: Jul 2006
Posts: 23
lateral line size

I have 1 1/2 inch mainline getting 30gpm open ended my plans are to use orbit voyager II sprinklers i connected three with 5/8 in water hose and put a gauge on it and pressure was 35psi my question is what would be the best pipe size for my lateral lines I plane on 4 lines each 125ft long with 4 to 5 sprinklers per lateral line. Is 1 inch to big and should it be the same size all the way of the 125ft or should I reduce it as it goes along.
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Old 06-18-10, 04:32 AM
Join Date: Nov 2008
Location: mid-west
Posts: 186
1 inch is fine, all the way, it's all I use, keeps it simple ...only one size of fitting, little friction loss.

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