When you work in the irrigation field, you are bound to encounter a valve problem at some point. We interviewed Ewing Account Manager and irrigation specialist Doug Donahue to get the scoop on what some of the most common valve problems. Since valves work either hydraulically or electrically, this Q&A is divided according to valve type.

Q: Why won’t my hydraulic valve turn on?

A: If your valve functions hydraulically and is not working, there are a couple of things you should check for.

First, make sure the water to the system is not turned off.

If you have checked to make sure your system is on, next make sure that the flow control handle on top of the valve is not turned off.

Lastly, check the ports in the valve to make sure they are not clogged.

Q: Why won’t my electric valve turn on?

 A: If your valve functions electrically and is not working, look for these common causes.

First, check your controller program and make sure the time, run time and watering days are set correctly.

Once you have verified the functions on your controller, consider the possibility that you may have a broken wire between the valve and controller that is preventing your valve from turning on. To help locate the wire for repair, watch this video.

Lastly, you may have a problem with the solenoid. Visit your local Ewing store to find the part you need.

Q: Why won’t my hydraulic valve turn off?

A: If your valve functions hydraulically and is not working, check both the external and internal bleeds. If they were manually opened at any time and were not closed, they will affect your valve turn off. If this is the case, simply close the bleeds.

Another thing to consider is that your valve’s diaphragm may need to be replaced. A damaged diaphragm will not seal properly and will impact your valve’s ability to turn off.

Lastly, make sure your valve has the correct amount of water coming through that is needed to make it close. If there is too little water flowing through, the valve may not close properly. You can refer to the manufacturer’s guide for this information.

Q: Why won’t my electric valve turn off?

If your valve functions electrically and is not working, there are several things you can look for that may be an easy fix.

First, check your controller program and make sure the time, run time and days are set correctly.

If that information looks correct, you can examine your solenoid. If it is not working properly, it may not allow the plunger to come down and stop the water flow. You may need to replace the solenoid with a new one, which is a simple fix.

Contact your local Ewing branch to speak with a service professional to find the right product to help you fix your valve problem, or if you have additional questions.