# Bucket test

Discussion in 'Irrigation' started by duckworth, Jul 5, 2012.

1. ### 1idejimLawnSite FanaticMale, from State of JeffersonMessages: 11,289

Keeping within the 5 fps rule 1" sched 40 = 12 gpm. Cl 200 = 16 gpm. Cl 160 = 16 gpm. A 5/8" meter delivers 15 gpm.

Unless you are using class for supply i am seeing the supply line as the bottle neck.

This is why we see a lot of 1.25 sched 40 used for supply from the meters in tracts i guess.

I am interested in your equation though. I called Pollard Water concerning this same issue without results.
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2. ### txirrigationLawnSite Senior Memberfrom TexasMessages: 977

I gave up looking for the book... so I ordered another one. I will post up the equation when it gets in.

Here is a link to the manual:

http://www.isstx.com/manualpurchase.asp

I took my licensing class from this guy, he is a bit out of the box but he was a great teacher. He had run his own company for a good while, and was a 2nd generation irrigator. The only thing I do not like is that he is pushing to make irrigation available in trade classes in highschool, that is the last thing we need right now. I can see a flood of 18yr. old irrigators running out into the world. He wrote the book, so putting it into highschool classes is a bit self serving.

Last edited: Jul 8, 2012
3. ### txirrigationLawnSite Senior Memberfrom TexasMessages: 977

To answer your question, as a company rule we stop at 12gpm on 5/8 meters. This is to account for pressure drop as more homes are built, give more pressure to the house when the system is running, and a host of other reasons. Most tract homes do have 1.25-2" supply lines.

4. ### Wet_BootsLawnSite Fanaticfrom metro NYCMessages: 50,381

I still see 3/4-inch copper - I have also seen 5/8-inch and 1/2-inch copper supply lines

5. ### muddywaterLawnSite Bronze MemberMessages: 1,813

I have seen 5/8 meters push over 20gpm. 12gpm is a good number on average
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6. ### 1idejimLawnSite FanaticMale, from State of JeffersonMessages: 11,289

I was referred to a locating guru a week or so back that was so self envolved and self serving that he couldn't answer my questions without tovting his prodvcts and his past ~triumphs~ over other locators in clinical situations. He lost me when his answer to any question was to pour more water on the ground stake.

i don't usually have issues with arrogant people if the arrogance is deserved but every word from this guys mouth was self promotional. I figure if yovr horn needs tooted, some one will toot it, no need doing it yourself. He never answered my question either.