Frequently Asked Questions

If you have a quick question or need a whole list of explanations - chances are you'll find the answers you're looking for right here. If not, be sure to give us a call and talk with one of the experts at Wyatt

Do you design irrigation systems for vineyards?

Yes, we’ll come out to your project and use a GPS to get the exact measurements, then provide you with a detailed CAD design and list of materials

Can you start the irrigation design prior to having the field marked?

Yes we can GPS the field before staking.

I want to automate my irrigation system. What do I need to do?

You need to have 110v power available where you wish to install your main controller. From there you run a low voltage wire out to your individual valves. If 110v is not available, there are battery- operated valves that will do the job. If you have existing manual valves, you’ll need to either replace them or add an electric valve adapter.

Is there anything to measure soil moisture?

There are a variety of moisture probes and sensors available, depending on your application.

Do you install/troubleshoot irrigation systems?

We don’t do any in field work. We would recommend a licensed contractor to help you with troubleshooting.

Do you repair controllers? If I bring mine in for repair, do I have to disconnect all of the wires and unbolt it from the wall?

Yes, we offer controller repair. It's best if you bring in the entire controller, including the box, although sometimes it's only necessary to bring in the controller panel.

One sprinkler in my lawn is always leaking water. Why? How can I fix it?

It could be the lowest head on the lateral line. If so, all the water left over in the pipe after irrigation is draining through this sprinkler. Fix the problem with a check valve placed underneath the sprinkler.

I have one valve that won't turn off/on. What can I try before calling a contractor?

Try turning the valve on manually by turning the bleed screw or solenoid. If it still won't activate, make sure the main water supply is turned on.

I have an issue with iron in my water and my emitters plugging. Do you have anything that helps?

We carry a product that will help clean out plugged emitters and, if injected into your system regularly, will keep them flowing.

Does my irrigation system need a filter?

Filters can help extend the life of, and lower the maintenance on, your sprinkler system. For drip systems, filters are a necessity to prevent emitters from plugging. Even if small sand particles can pass through your system without clogging it, they still cause wear on the equipment.

What kind of filter should I use?

There's no fixed answer. Consider your budget, water quality, and availability of the filter and parts. Screen filters are generally the least expensive. If you have a city water supply with nothing more than a periodic grain of sand or flake of rust in it, a screen filter will be fine in most cases.

Disk filters are good at removing both particulates, like sand, and organic matter. A disk filter consists of a stack of round disks. The face of each disk is covered with various sized small bumps, and each bump has a sharp point on the top of it, somewhat like a tiny pyramid. The bumps create tiny spaces between the discs when they're stacked together. The water is forced between the disks, and the particulates are filtered out because they won't fit through these gaps. The sharp points on the bumps snag the organics. For automatic cleaning of the filter, the disks separate from each other, freeing the debris, which flushes out through a flush outlet. With less expensive disk filters, you must remove the disks and hose them off.

Do I really need an air vent on my system? Where do I place them?
  • Presence of air in a pipeline can cause flow obstruction - up to a complete stoppage, at times. It can also cause water hammer or an inadequate supply of water.
  • An air vent should be placed directly after the pump and before the pump check valve.
  • On long runs, place an air vent at 550-900 yard intervals, as well as one on each end of the run.
  • Install vents at the inflow side of filter heads to prevent air from entering the filters.

Additional recommended mounting locations include:

  • On top of the filters, to release air from within and to enable draining and backwashing.
  • At the outflow side, to release remaining air and to prevent vacuum conditions and suction of filter media out of the filter.
When should I use pressure compensating drip emitters?

PC dripper is mainly used on systems with a long run of drip tubing, in order to maximize the amount of drippers on a single drip line while maintaining an even flow rate from each dripper. They are also better suited for areas with elevation differences.

What do I do about water hammer in my lines?

A pressure change or surge in the line causes water hammer, generally when water is turned on or off. If you are having a problem with water hammer in your line, adding a short branch line with a garden hose may help.

The easiest solution is to lower the water pressure for your entire irrigation system. This doesn't really get rid of all of the water hammer, but it will sometimes reduce it to a level you can live with. The next step is to try a water hammer arrestor. Try putting it on a hose bib close to the point where the irrigation system connects to the house water. If you have a hose bib on the irrigation system mainline, that is an even better spot to place the arrestor.

Can I combine my drip system and my sprinkler system? If not, why not?

It's not recommended, because the watering requirements are very different for your drip and your sprinkler system.

Why is my auto filter flushing all the time?

Your auto filter should only flush when the filter element is plugged. If it flushes continuously, the filter needs maintenance or repair.

Do I need a backflow device on my system?

Yes, a Uniform Plumbing Code (UPC) approved backflow prevention device is required for all irrigation systems.

What type of glue should I use with my irrigation system?

There are several types of glue, each with its own application:

  • 2711 gray glue is good for all classes and schedules of pipe up to 12"
  • 2705 clear glue is good for all classes and schedules up to 4"

Both 2711 and 2705 require the use of primer.

  • 2725 {wet'r dry} is used when conditions are very wet or a quick pressurization is required.

How far can I run 18-gauge wire?

There are many things to consider when sizing wire: voltage coming out of the controller, the solenoid draw, how many valves you're trying to operate, quality of your wire splices, etc. For a rough rule of thumb, 18-gauge is good for 750 feet, if you are operating one valve at a time.

What size transformer and wiring do I need on my lighting project?

There are a number of things that affect transformer and wire sizing: the number of fixtures, length of wire needed, and the bulb wattage in each fixture. We can help you calculate which transformer and wire size would be best for you.

I see some of the same brands of sprinklers and valves at retail stores. Is the quality the same?

All the products we carry are a commercial grade with manufacturers' warranties. PVC comes in several grades, and most of these products in the retail stores are made with the lesser grade material.

Do you sell to homeowners as well as contractors?

Yes, we sell to and can offer expert advice to both the contractor and do-it yourselfer.

Do you need a license to purchase fire sprinkler components?

Yes, a C16 contractor's license is required.

Can I tap into my fire sprinkler main line for my irrigation system?

No, a fire system is calculated for specific flow requirements, which would be altered if other functions came off the same lines. This would substantially decrease the effectiveness of the fire protection application.

Can I paint my fire sprinkler heads or other parts to match the color of my ceiling?

No! Any time a ceiling sprinkler or escutcheon is painted, the temperature required to activate the sprinkler is no longer accurate.

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