FAQ

How many spray smart valves do I need?
Do I have to dig up my yard?
How do I “program” the Spray Smart valves?
How do I decide which heads are “A zone” and which heads are “B zone”?
How do I re-program my controller to take advantage of the Spray Smart valves?
Why do I need a valve for each sprinkler?  Can’t I just install Spray Smart valves under a few heads?
How much pressure does it take to actuate the Spray Smart Valve?
What is the highest pressure that Spray Smart valves can operate at?
What happens to the valves when the water pressure sputters due to air in the pipes?
How much pressure is lost when the water flows through the Spray Smart valve in the open position?
Can I get a volume discount?
Is Spray Smart available in larger sizes like 3/4″ or 1″?

Troubleshooting


Q) How many spray smart valves do I need?

A) In most cases you will need one spray smart valve for each sprinkler head in the zone that you want to optimize.  Turn on the sprinklers and count the heads, that is how many valves you need.  If you have multiple zones to optimize, you will need to count all of the heads from all of the zones.

Q) Do I have to dig up my yard?
A) No, Spray Smart cartridge valves fit directly in the stem of leading popup sprinkler heads. The top of the head unscrews and the Spray Smart valve is installed in around a minute. For above ground heads, like shrubs, the universal threaded unit is installed simply by screwing it inline.

Q) How do I “program” the Spray Smart valves?
A) The valve can be actuated by squeezing between your thumb and forefinger.  Once you cycle the valve a few times it will be obvious how the states are changing.  You can check the state of the valve by pressing lightly on the plunger. On valves that are “ready to open”, the plunger will stick out more. Please see the Installation page for more detailed instructions.

Q) How do I decide which heads are “A zone” and which heads are “B zone”?
A) Typically you will want to group all heads of the same type or same water demand together.  If you are mixing sprinkler types, group by type.  If you have wet or dry spots, group accordingly.  If your lawn is pretty uniformly green/brown and using all the same sprinkler type, then group by spray arc.  The different arcs, like 1/4 circle, 1/2 circle and full circle, typically have different flow rates and you will find that you can adjust your run times for the different arcs to save water.  Group the largest arcs together and the smallest arcs together.

Q) How do I re-program my controller to take advantage of the Spray Smart valves?
A) Once you subdivide your circuit you will probably want to run different times for the “A zone” and the “B zone”.  This done by using the “A cycle” and “B cycle” of your irrigation controller.  Setup the “A cycle” start time for the Spray Smart circuit to run first (for example 5 am).  Setup the “B cycle” start time for the same circuit to run later (for example 6 am).  Set the “zone run time” for the “A cycle” as required.  Set the “zone run time” for the “B cycle” to something different.  Manually turn on and off the circuit until the “B zone” valves run.  Put the controller into the auto mode so that the next run will be the “A cycle” which will be turn on the “A zone” valves.  The “B cycle” and the “B zone” valves will follow (an hour later in our example). Please see the Installation page for more detailed instructions.

Q) Why do I need a valve for each sprinkler?  Can’t I just install Spray Smart valves under a few heads?
A) In some cases, yes.  If you had some heads that sprayed a very wet spot or only sprayed a lower water use landscape (like shrubs or ground cover) then you could use Spray Smart valves under just those heads.  Then those heads would only run half the time of all the rest.  In most cases, it is not as simple as only running some of the sprinklers for half the time.

Q) How much pressure does it take to actuate the Spray Smart Valve?
A) The Spray Smart valve requires a minimum of 20 psi when the system is fully pressurized (i.e. after the hissing and popping of the air being forced out).  This is about as low as any sprinkler should ever be operated to get a proper spray pattern. If your system is presently running below 20 psi, fixing leaks (you probably have a few) and/or adjusting your spray heads can usually allow the spray smart valves to work properly.

Q) What is the highest pressure that Spray Smart valves can operate at?
A) The Spray Smart valve is designed to operate at pressures up to 60 psi.  The valve will not be damaged by pressure spikes as high as 100 psi.  If your sprinkler pressure is above 60 psi we suggest you add a regulator to reduce it.

Q) What happens to the valves when the water pressure sputters due to air in the pipes?
A) Spray Smart valves are designed to tolerate water pressure fluctuations during the actuation and reset periods.  It would take extremely rare and unusually severe pressure fluctuations to have any effect on the valve’s operation.

Q) How much pressure is lost when the water flows through the Spray Smart valve in the open position?
A) While the valve may look like it would cause a noticeable pressure drop, it actually doesn’t.  The spray smart valve will lose about 1 psi for each GPM (Gallons Per Minute) that passes through it.  Typical spray heads use around 1 GPM at normal pressures, so the loss of pressure would not be noticeable.   Even a large “impact rotor” will only use about 4 GPM and would have very little pressure loss (4 psi) through the Spray Smart valve.

Q) Can I get a volume discount?
A) Anyone who has a valid seller’s permit can apply to purchase Spray Smart valves in larger quantity for resale purposes.  Wholesale pricing is dependent upon the order quantity.

Q) Is Spray Smart available in larger sizes like 3/4″ or 1″?
A) Presently Spray Smart is only available in popup cartridge style and the universal 1/2″ thread size that is most common for home and commercial landscapes.  If there is enough interest in larger sizes, they could be developed.  Please Contact Us and let us know that you want them.

 
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