Register free!


Reply
 
Thread Tools   Display Modes
  #1  
Old 07-07-2014, 01:41 PM
level4designs level4designs is offline
LawnSite Member
 
Join Date: Jul 2014
Location: Pendleton, OR
Posts: 10
Well Pump Cycles every 30 seconds

Hello:

New poster here, but I have a 350 foot well, and the 5 hp motor cycles when I irrigate every 30 seconds. 30 seconds to recharge, 30 seconds to drain. I have an older style bladderless tank that is about 200 gallons.

So I thought I was water logged, so I drained it, then filled it. The water comes up, hits the air control valve and closes, so then it charges and runs between 45 and 75 psi.

No effect though, same 30 seconds. I am only running 4-5 rainbird 5000 sprinklers with 4-5 gpm heads, the well gets about 20-25 gpm, so this seems reasonable...

Is 5 hp motor just to big? should run more continuous shouldn't it?
Reply With Quote
  #2  
Old 07-07-2014, 01:46 PM
AI Inc's Avatar
AI Inc AI Inc is offline
LawnSite Fanatic
 
Join Date: Dec 2007
Location: Southern NH
Posts: 22,046
You need to be using more water. Either nozzle up or possibly try running 2 zones at once.
__________________
Reply With Quote
  #3  
Old 07-07-2014, 01:57 PM
level4designs level4designs is offline
LawnSite Member
 
Join Date: Jul 2014
Location: Pendleton, OR
Posts: 10
Do I run the risk of running it dry?
Reply With Quote
  #4  
Old 07-07-2014, 01:58 PM
Mike Leary's Avatar
Mike Leary Mike Leary is offline
LawnSite Fanatic
 
Join Date: Mar 2007
Location: Cactus Hug, Arizona
Posts: 20,574
What A-1 said, you need to be into that pump ASAP. Did you get a well log from the drillers, you could have other problems.
Reply With Quote
  #5  
Old 07-07-2014, 02:00 PM
AI Inc's Avatar
AI Inc AI Inc is offline
LawnSite Fanatic
 
Join Date: Dec 2007
Location: Southern NH
Posts: 22,046
Quote:
Originally Posted by level4designs View Post
Do I run the risk of running it dry?
Probably not. You say it gets 20-25 GPM. Where did you come up with that number?
__________________
Reply With Quote
  #6  
Old 07-07-2014, 02:01 PM
level4designs level4designs is offline
LawnSite Member
 
Join Date: Jul 2014
Location: Pendleton, OR
Posts: 10
we just bought the house, we had the well checked out, we had it tested for GPM, I think they said 22 gpm.

We also lowered the well down 60 feet... they just put a new 5 horse motor in it before we bough it...
Reply With Quote
  #7  
Old 07-07-2014, 02:04 PM
AI Inc's Avatar
AI Inc AI Inc is offline
LawnSite Fanatic
 
Join Date: Dec 2007
Location: Southern NH
Posts: 22,046
at 22 its chance of running dry is slim to none. Tell us more
how many zones
how many heads per zone
what brand controller ect
__________________
Reply With Quote
  #8  
Old 07-07-2014, 02:06 PM
level4designs level4designs is offline
LawnSite Member
 
Join Date: Jul 2014
Location: Pendleton, OR
Posts: 10
and need to clarify, we didn't drill it 60 feet deeper, but we were getting something like 9 gpm in the well, but the pump was like 80 feet off the bottom... so we lowered it down 60 feet, so it's about 20 feet up from the bottom and then we now get 22 gpm just by lowering the pump down to the bottom.

as for stations, I have about an acre and I run a hunter pro c with all rainbird 5000's. I have 12 stations total. each station only has 4-5 heads on them, and they run 4-5 gpm nozzles on each... all pretty similar really.
Reply With Quote
  #9  
Old 07-07-2014, 02:08 PM
AI Inc's Avatar
AI Inc AI Inc is offline
LawnSite Fanatic
 
Join Date: Dec 2007
Location: Southern NH
Posts: 22,046
Wow , may want to consider going in the other direction. Nozzle down to 1.5-2 gpm nozzles.And put a small delay between zones.
__________________
Reply With Quote
  #10  
Old 07-07-2014, 02:12 PM
level4designs level4designs is offline
LawnSite Member
 
Join Date: Jul 2014
Location: Pendleton, OR
Posts: 10
hmm, when we got it, our local landscape company had put in 6 stations here and the whole system, so we just followed what they did on the stations when we added the next 6.

They all had 4 gpm heads on them and run 4 nozzles per station, so I followed their design... seemed logical

you think it's not keeping up? (delay between zones?)
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 07:53 AM.

Page generated in 0.07511 seconds with 7 queries