Register free!
Search
 
     

Click for Weather
Reply
 
Thread Tools Display Modes
  #1  
Old 05-10-2013, 09:34 AM
mfurey14 mfurey14 is offline
LawnSite Member
 
Join Date: May 2013
Location: Toms River, NJ
Posts: 1
Pressure trouble with sprinklers

I'm having some trouble with pressure in one my sprinkler zones and I was hoping someone here would be able to help me out. I have 4 zones with Orbit pop up heads on them supplied by a 1 hp Goulds well pump. Zones 1,3, and 4 all work normally and operate around 25 psi. The pump pressure is set up at 40/60. I've replaced the expansion tank, the pressure gauge, the pressure switch, and some of the PVC pipes on the supply side of the pump and the pipes coming right out of the pump. The reason everything looks brown and rusty is because the old expansion tank was leaking and spraying rusty water everywhere. Once zone 2 comes on the pressure drops to about 5 psi and water only comes out of the sprinkler heads in that zone about 5 ft. All heads operate normally and pop up and down fine. My father in law thought it might be the solenoid for that zone, so I replaced it with a brand new one, but it didn't help. The next thing we thought was there's most likely a leak in the line, however I have a city water spigot right next to one of the spigots I have hooked up to the well (I have 5 other spigots hooked up to the well around the house). Normally I just used the city water and hook a hose up from that spigot to the one right next to it for the well pump to prime it. So I thought I'd try and have the city water hooked up this time with zone 2 on and see how it works. When I did that the sprinklers worked like normal at about 25 psi. So because of that I feel like there's not a leak in the line, otherwise even with the city water going through the pump, if there was a leak it still wouldn't work (I would think). Does anyone have any ideas of what could be causing the loss of pressure? I just bought this house last year and this well was already here so I don't know the history of it, I just know the pump is a Goulds J10S. Not sure if it'll help, but I'll post a picture of my pump. I'm also new to all this irrigation stuff and don't know a whole lot of the lingo, so if you could explain anything in easier terms for me to understand I would really appreciate it. Thanks!
Attached Images
 
Reply With Quote
  #2  
Old 05-10-2013, 09:12 PM
greenmonster304's Avatar
greenmonster304 greenmonster304 is online now
LawnSite Silver Member
 
Join Date: Jul 2007
Location: You Know
Posts: 2,426
Maybe you have a suction leak or the impelar is toasted. With all that rust it could have clogged up the finns on the impeller. I had that happen on a submersible.
Posted via Mobile Device
Reply With Quote
  #3  
Old 05-10-2013, 09:53 PM
londonrain's Avatar
londonrain londonrain is offline
LawnSite Silver Member
 
Join Date: May 2006
Location: Riding a golfcart with RainMaster Remote in hand
Posts: 2,118
How many heads on each zone and the GPM of each head. With that pump you might get 7-8GPM if lucky... the deeper the suction/lift the less you will get.
__________________
Good repair jobs aren't cheap. Cheap repair jobs aren't good.
Reply With Quote
  #4  
Old 05-11-2013, 12:49 AM
1idejim's Avatar
1idejim 1idejim is online now
LawnSite Fanatic
 
Join Date: Jul 2009
Location: State of Jefferson
Posts: 6,906
I am with Londonrain. I would suspect the demand of the zone exceeds supply. The city supply runs the zone while the well won't.
Posted via Mobile Device
Reply With Quote
  #5  
Old 05-11-2013, 12:40 PM
Stillwater Stillwater is offline
LawnSite Platinum Member
 
Join Date: Mar 2006
Location: The United States
Posts: 4,250
It's only one zone with the issue?... And the Zone works properly when connected to town supply? Well then gee wiz..... I would check the components you are bypassing when you connect to the city supply
Posted via Mobile Device
Reply With Quote
Reply

Tags
bad zone , low pressure , sprinkler trouble

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 12:42 AM.

Page generated in 0.07199 seconds with 10 queries