Register free!
Search
 
     

Click for Weather
Reply
 
Thread Tools Display Modes
  #41  
Old 02-03-2009, 12:17 AM
Az Gardener Az Gardener is offline
LawnSite Gold Member
 
Join Date: Sep 2005
Location: Phoenix, Az
Posts: 3,895
Late to the party but here is what I have heard from an executive at our Az Municipal Waterusers Assoc. AMWA. After being out for a few years these soil sensors to this point have not seemed to saved any water. On the contrary they tend to use more water because they are programed for plant health. Optimum plant health and water conservation at least in Phoenix are not consistent objectives. This info was given to me on the side during an event where there was some alcohol involved and was not for the general public info just yet.

I have used Acclimas on a varied site with one sensor to cover everything from loose granite to clay back fill with lawn to cacti. It was a pain but after 2-3 months we were able to get it to function OK. On another site we had two homes across the street from each other and one had the Acclima and the other had us setting the controller. We found that in general the Acclima watered a day or two before we would on an established L/S. But we are very actively monitering and adjusting our controllers so once you get the Acclimas set they were a time saver and the plants did not have to endure the stress we put them through by erring on the dry side which is our tendency. It is easier to bring something back from too dry than too wet.

Just my .02 I would like to find something cheaper though.
__________________


“If I accept you as you are, I will make you worse; however, if I treat you as though you are what you are capable of becoming, I help you become that.”
Reply With Quote
  #42  
Old 02-03-2009, 12:37 AM
Kiril Kiril is offline
LawnSite Fanatic
 
Join Date: Jun 2007
Location: District 9 CA
Posts: 18,309
Quote:
Originally Posted by Az Gardener View Post
On the contrary they tend to use more water because they are programed for plant health.
The sensors (the ones I am aware of) are not programmed for anything, they just sense soil moisture ... what is done with that information is up to the manager and/or the controller if using a bundled solution like Acclima. Sounds to me the Acclima is alot like the WMSL in that it tends to over water instead of underwater without user override.

IMHO, soil moisture sensing is going to give you the most accurate picture of site water use. Naturally proper sensor placement, installation, and controller management is still required. Couple that with a weather station and ET calculations and you have an extremely powerful tool for irrigation water management. Too bad there are only a handful of controllers that actually offer both, and that they are way out of the price range for most.

I also try to push my landscapes close to the PWP, so I agree that the "smart" controllers tend to over water because they are based on optimum plant health and not the minimum required to maintain aesthetic appeal. Given this is subjective observation in most cases, water use can fluctuate from site to site simply based on customer expectations.
Reply With Quote
  #43  
Old 02-03-2009, 09:05 AM
TRILAWNCARE's Avatar
TRILAWNCARE TRILAWNCARE is offline
LawnSite Senior Member
 
Join Date: Nov 2008
Location: One Foot in the Grave
Posts: 946
Here is the final copy of a study done on the subject.

http://www.allianceforwaterefficienc...id&ItemID=1940
__________________
Another not-so-helpful post presented by me, for you....
Calsense Controllers, best irrigation control system's being made.

Flat Screw Driver
Phillips Screw Driver
Pliers
Channel Locks
Side Cutter
Needle Nose
Fluke Multi Meter
Greenlee Amp Clamp
PVC Cutter
Hack Saw
Shovel
Sledge Hammer
Post Hole Digger
Broom
Rake
Rags
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.com™ - Moose River Media
All times are GMT -4. The time now is 05:45 PM.

Page generated in 0.06715 seconds with 10 queries