Register free!
Search
 
     

Click for Weather
Reply
 
Thread Tools Display Modes
  #1  
Old 08-06-2013, 01:33 PM
Cape Atlantic Landscaping's Avatar
Cape Atlantic Landscaping Cape Atlantic Landscaping is offline
LawnSite Member
 
Join Date: Mar 2011
Location: Cape May, New Jersey
Posts: 37
designing Drip for Trees on a 1 horse pump

Hello,

I get a phone call from a friend who is a fellow Landscaper and he asks me to help him

Scenario
1. Home owner has a non irrigated area about 1/2 acre that has 12 smaller ornamental trees that need to be irrigated with drip. he would like to tie into existing sprinkler system that is used for front and sides of house that is irrigated. he would like to use drip line tubing like Techline . 9 gpm 12 inch spacing and wrap a couple of lines around each tree. The existing system is tied into a 1 horse submersible pump at a rate of probably 18 GPM and a Static of 65 Psi.
My question is how do you do this with out the pump cycling on and off.
2. the easy solution which I have been guilty of before was just tie it into an existing zone. I also had the idea of adding a spray head or two to the new drip zone to get the proper flow so the pump don't cycle.
Thank you for your knowledge and expertise
__________________
Reply With Quote
  #2  
Old 08-06-2013, 01:42 PM
Wet_Boots's Avatar
Wet_Boots Wet_Boots is offline
LawnSite Fanatic
 
Join Date: Mar 2005
Location: metro NYC
Posts: 39,552
How large are the trees? One possibility, besides forgetting drip and installing an overkill-watering zone of spray heads just for the trees, would be low-flow drip connected to the system mainline, making every zone water the trees as well - additional water use would be a fraction of a gallon per minute.
Reply With Quote
  #3  
Old 08-06-2013, 01:59 PM
Cape Atlantic Landscaping's Avatar
Cape Atlantic Landscaping Cape Atlantic Landscaping is offline
LawnSite Member
 
Join Date: Mar 2011
Location: Cape May, New Jersey
Posts: 37
the trees are stunted they are about 14 to 15 ft. high and 2 to a 3 inch caliper.The home owner is asking to have this on its on zone so he can turn it on when he wants to. Yeah I know customers want it all.

2. Back round my company planted the trees about 12 years ago for the home owner and we worked for them previously but had to leave due to customer being difficult. My friend has since picked up the account and was asked to do these trees
__________________
Reply With Quote
  #4  
Old 08-06-2013, 02:04 PM
irritation's Avatar
irritation irritation is offline
LawnSite Silver Member
 
Join Date: Jul 2006
Location: Indianapolis, IN
Posts: 2,526
If the pump is controlled by a pressure switch and the tank is sized correctly, it should not cycle much with drip. You will of course need a pressure regulator and filter for the drip zone.
Reply With Quote
  #5  
Old 08-06-2013, 02:53 PM
Wet_Boots's Avatar
Wet_Boots Wet_Boots is offline
LawnSite Fanatic
 
Join Date: Mar 2005
Location: metro NYC
Posts: 39,552
Low-flow drip would cycle on its own zone, while run alone, but, as mentioned, the time period of the cycling would be so long that the pump wouldn't suffer.

The controller might need to be changed, if the drip zone would run concurrently with a lawn zone.

The zone valve for low-flow drip might be an issue. Special zero-minimum-flow valves exist, but are probably special order.
Reply With Quote
  #6  
Old 08-06-2013, 03:13 PM
1idejim's Avatar
1idejim 1idejim is online now
LawnSite Fanatic
 
Join Date: Jul 2009
Location: State of Jefferson
Posts: 6,833
Cycle Stop Valve.
Reply With Quote
  #7  
Old 08-06-2013, 03:40 PM
Wet_Boots's Avatar
Wet_Boots Wet_Boots is offline
LawnSite Fanatic
 
Join Date: Mar 2005
Location: metro NYC
Posts: 39,552
I would never modify a domestic well water supply for my irrigation convenience, short of pressure switch tweaking. Dedicated irrigation well maybe, but they aren't all that common 'round here.
Reply With Quote
  #8  
Old 08-06-2013, 04:25 PM
irritation's Avatar
irritation irritation is offline
LawnSite Silver Member
 
Join Date: Jul 2006
Location: Indianapolis, IN
Posts: 2,526
Quote:
Originally Posted by Wet_Boots View Post
The zone valve for low-flow drip might be an issue. Special zero-minimum-flow valves exist, but are probably special order.
I don't know why. They work fine on domestic water supplies with the same or higher pressure.

http://store.rainbird.com/product/detail/X10306.aspx
Reply With Quote
  #9  
Old 08-06-2013, 05:24 PM
Wet_Boots's Avatar
Wet_Boots Wet_Boots is offline
LawnSite Fanatic
 
Join Date: Mar 2005
Location: metro NYC
Posts: 39,552
anyone using the special Rainbird zone valves specifically intended for drip?
Attached Images
 
Reply With Quote
  #10  
Old 08-06-2013, 05:33 PM
greenmonster304's Avatar
greenmonster304 greenmonster304 is online now
LawnSite Silver Member
 
Join Date: Jul 2007
Location: You Know
Posts: 2,376
The cycle stop would work. I have installed them for the same reason.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump






Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Moose River Media
All times are GMT -4. The time now is 07:28 PM.

Page generated in 0.07617 seconds with 8 queries