Installation

big_promo_box2Installing Spray Smart valves is easy!  There is no trenching or new plumbing required.  Here’s how:

1.) Decide which sprinklers will be in the “A zone” and which sprinklers will be in the “B zone”.  See How It Works if you need help deciding.

  • Turn on the sprinkler zone and mark each sprinkler location with a flag (or suitable substitute).  Yes, you will get a little wet and this seems silly, but you would be surprised how hard it is sometimes to find sprinkler heads when they are off and how easy it is to mis-count the heads when water is spraying everywhere.  Turn off the sprinklers.

lawn-with-flags

 

 

 

 

 

 

 

 

2.) Clear the grass and dirt off the top of each sprinkler head so the head is clearly exposed.  Start with the lowest head in the zone (in other words, the bottom of any slope).  It is not critical that you find the lowest head, it will just allow you to only drain once.  Remove the pop-up portion of the head.  Allow any water to drain.  Do not allow any dirt to enter the head.

sprinkler-with-top-removed

 

 

 

 

 

 

 

 

 

 

3.) Pre-set the Spray Smart Valves to be either “A zone” valves or “B zone” valves. 

All valves come from the factory as “A zone” or “ready to open” and will look like this:

ready-to-open

 

 

 

 

 

 

 

 

 

 

Note that in the “ready to open” state, pushing lightly on the plunger will produce little or no movement.

For the “B zone” valves, press the rubber plunger all the way into the housing until it stops.  When you release the plunger, the valve will slowly reset to the “B zone” or “ready to close” state.  You must wait at least a minute to be sure the valve has completely reset.  You will also need to gently press on the plunger to verify that the valve is in the “ready to close” state.  The picture below shows two valves for comparison.  The same light finger pressure is applied to both.  The “A zone” valve on the left is ready to open.  The “B zone” valve on the right is ready to close.

ready-comparison


















4.) Place a Spray Smart valve that is “ready to open” next to each of your “A zone” heads.  Place a Spray Smart valve that is “ready to close” next to each of your “B zone” heads.


















5.) Insert the Spray Smart valve directly into the valve stem. Then re-install the popup stem into the sprinkler body.

















For each remaining head, repeat the steps 2-5 above.  Working on one head at a time helps reduce the possibilty that dirt will fall into an open pipe.  Install a “ready to open” Spray Smart valve in each “A zone” head.  Install a “ready to close” valve in each “B zone” head. 

Above Ground Applications:

1.) Remove the spray head from the top of the riser.

















2.) Install a female union and the Threaded Spray Smart valve.
















3.) Install an ADAPTER to leave a gap for the screen between the Spray Smart valve and the spray head.

















Programming the Controller:

1.) Manually turn on the main supply valve to run for 2 minutes using the irrigation controller. Verify that all the “A zone” heads turn on and all the “B zone” heads turn off.

CAUTION: DO NOT RUN THE WATER FOR LESS THAN ONE MINUTE OR THE VALVES MAY RESET INCORRECTLY.

If one of the sprinklers is not on/off as it should be, wait for the water to shut off.  Wait one minute for all the valves to reset.  Unscrew the incorrect Spray Smart valve and press the plunger once until it stops to switch the valve state.  Re-install the valve and sprinkler.

CAUTION: LEAVE THE WATER OFF FOR AT LEAST ONE MINUTE OR THE VALVES MAY RESET INCORRECTLY.

2.) Manually turn on the main supply valve again to run for 2 minutes using the irrigation controller. Verify that all the “B zone” heads turn on and all the “A zone” heads turn off.

3.) Manually turn on the main supply valve to run for 3-5 minutes using the irrigation controller. Verify once more that all the “A zone” heads turn on and all the “B zone” heads turn off.  Adjust the sprinkler spray distance of each “A zone” sprinkler to achieve the correct coverage.

CAUTION: LEAVE THE WATER OFF FOR AT LEAST ONE MINUTE OR THE VALVES MAY RESET INCORRECTLY.

4.) Manually turn on the main supply valve to run for 3-5 minutes using the irrigation controller. Verify now that all the “B zone” heads turn on and all the “A zone” heads turn off.  Adjust the sprinkler spray distance of each “B zone” sprinkler to achieve the correct coverage.

CAUTION: ANY TIME YOU RUN A MANUAL CYCLE, YOU MUST RUN THE STATION WITH SPRAY SMART VALVES TWICE.  YOU MUST ALWAYS RUN THE “B ZONE” LAST SO THAT WHEN THE CONTROLLER RUNS AUTOMATICALLY, THE “A ZONE” HEADS WILL RUN FIRST.

5.) Adjust your irrigation controller as follows:

NOTE: If you are only using Spray Smart to boost pressure and plan to run all of the heads for the same amount of time, just plan to run your Spray Smart station twice as long as before (since the “A zone” and “B zone” will each only run half as often) and ignore all the detailed instructions below.  If you would like to use Spray Smart to optimize watering within a zone, you need to program your controller correctly.

Use the “A cycle” and “B cycle” on your controller.  If your controller does not have more than one cycle, you will need to get a new controller to get the full benefit of the Spray Smart valves.

  • Set “Days to Water”

Verify that both the “A cycle” and “B cycle” are programmed to water the same number of times per week.  For example, they can both water on the same days or they can both water every other day.  If the “A cycle” is set to run 3 days per week and the “B cycle” is set to run 4 days per week, your “A zone” valves will run on the “A cycle” some days and the “B cycle” other days.  This is not how the Spray Smart valves are supposed to work.

  • Set “Cycle Start Times”

When optimizing with Spray Smart, you can only run one start time for each cycle.  Verify that only one start time is set for both the “A cycle” and the “B cycle”.  Set the start time of your “A cycle” to occur before the start time of your “B cycle”.  For example, set the “A cycle” to start at 4:30 am and set the “B cycle” to start at 5:00 am.

  • Set “Station Run Times”

For the Spray Smart station, set the desired run time for your “A zone” valves on your “A cycle”.  For ease of programming, we suggest you run ONLY the Spray Smart station on the “A cycle”.  Set all other station run times to zero.

For the Spray Smart station, set the desired run time for your “B zone” valves on your “B cycle”.  Set the proper run times for all your other stations on the “B cycle”.

  • Optimize over Time

To run the optimum time for the “A zone” and the “B zone” based on the watering needs, watch the landscape health and gradually reduce the run time until dry spots start to appear.

Consider changing which sprinklers are in the “A zone” or “B zone” if the dry spots are in only certain areas.  To do so, simply unscrew the Spray Smart valve and compress it once with your fingers.  This will switch the ready state.

Consider adding heads to fix dry spots when there are too few heads spraying on them.  You have the extra water pressure now!

TROUBLESHOOTING:

One or more heads run with the wrong cycle.
None of the sprinklers ever shut off.
One sprinkler head never shuts off or never sprays.
The Spray Smart valves run in groups, but don’t always run with the same program of the irrigation controller.
My Spray Smart valves don’t switch. Some sprinklers spray every time and others shut off every time.
My Spray Smart valves are constantly switching to the wrong group.

One or more heads run with the wrong cycle.
If the valves are switching when the pressure is turned on and off, you simply have one of the valves pre-set to run on the wrong cycle. After turning off the pressure, wait for a minute for all of the valves to reset. Unscrew the valve that is running with the wrong cycle and press the plunger once until it stops. This will reset the valve to run on the opposite cycle.

None of the sprinklers ever shut off.
Spray Smart valves are normally open whenever the system is off. If the pressure never rises to 20 psi to close the valves, they will all stay open. Make sure all of your leaks are fixed and your house pressure is at least 60 psi. Next try screwing in the adjuster screw on all of the heads while they are running to see how much you need to reduce your water flow to reach 20 psi. If the heads need to be turned down too far for the Spray Smart valves to close, you will need to switch to low flow heads or remove some heads from the zone.

One sprinkler head never shuts off or never sprays.
If most of the sprinklers alternate normally, but one doesn’t, the Spray Smart valve is somehow damaged or jammed. Remove the valve and check for small rocks that may be jamming the plunger and not allowing it to close. Remove the rocks with a paper clip or ballpoint pen. Do not use anything sharp that may cut the rubber plunger. Verify that the valve cycles normally by pressing the plunger by hand and waiting for the valve to reset several times. If the valve fails to cycle normally by hand return it for replacement. If the valve cycles normally by hand but still does not shut off when the other valves do, return it for replacement.

The Spray Smart valves run in groups, but don’t always run with the same program of the irrigation controller.
If the Spray Smart valves do not stay aligned with the proper program on your irrigation controller, then the controller is either programmed to run the station more than once on a cycle or the cycles are set to run a different pattern of days. Make sure your irrigation cycles that operate the Spray Smart valves are set to run only one start time per cycle and to run the same number of days per week.

My Spray Smart valves don’t switch. Some sprinklers spray every time and others shut off every time.
Spray Smart valves require the system pressure to drop below 3 psi to trigger a reset. If your system has check valves that keep the system pressurized after the water is shut off, the Spray Smart valves may never reset. See the detailed instructions for operating with check valves.

My Spray Smart valves are constantly switching to the wrong group.
If your valves are switching states un-reliably there are two possible causes. 1) You are not allowing enough time for the valves to reset. Some valves may reset more quickly than others. Make sure you allow plenty of time for all valves to reset. 2) There is residual pressure in the pipes that is preventing normal reset. See the detailed instructions about operation with check valves. If your zone is on a large slope, you may have to wait longer (maybe hours for heads that leak very slowly) for the system to drain before the pressure will drop enough for the Spray Smart valves to reset.

To see a detailed demonstration of an installation of the prototype threaded valves watch our Demo Installation Video

 
Copyright © 2009 Aeromaster Innovations Inc. All rights reserved. SPRAY SMART and the SPRAY SMART logo are trademarks of Aeromaster Innovations Inc.