Skip to main content

Rated: 4.9 / 5 based on 2,000+ reviews. Read our reviews.

Don't panic! Access our fast 2-step Irrigation Shut-Off Guide here

How To Service Sprinkler Systems

Installing a lawn irrigation system ensures your garden gets enough water without requiring extra time and attention from you. You’ll also want to know how to service sprinkler systems if you want to keep your equipment in excellent condition for as long as possible. American Irrigation Repair shares some essential sprinkler service maintenance steps below.

How To Tell If Irrigation System Repair Is Necessary

The longer you ignore sprinkler damage, the worse it’ll get. Call an irrigation system specialist for immediate inspection and repair services. Irrigation system repair is likely necessary if you notice one or more of the following problems:

  • Damaged sprinkler risers or heads
  • Leaks
  • Visible damage to water lines
  • Increasing water bills without an obvious reason
  • Areas of extra green grass growth or marshy areas in the lawn

Best Sprinkler Maintenance Tips To Remember

If you want to learn how to service sprinkler systems and keep your yard healthy and looking its best, consider these expert tips.

Conduct Seasonal Sprinkler Checks

Typically, sprinkler maintenance should occur once in the fall and again in the spring. A sprinkler winterization process protects the equipment from ice damage.  We recommend a minimum of twice-per-year inspections and tune-ups.  

The basic steps in winterizing sprinklers might include:

  • Turn off the main water supply
  • Drain all pipes
  • Ensure any exposed above-ground valves or piping are fully insulated and protected

Once spring comes around, you’ll then gradually turn on the water supply to avoid problematic pressure surges. As you do, look for leaks and sprinkler heads that aren’t working.

Clean Sprinkler Heads Correctly

Sprinkler head cleaning forms part of essential maintenance. Sometimes, dirt and residue can clog sprinklers and cause problems like misdirected or inadequate water streams.  

Grass runners can grow over the sprinkler heads blocking them from popping up or shrub heads can become covered or blocked by plant growth or mulch.  

Irrigation experts can quickly clean your sprinkler heads because they know what to look for. The beauty of having professionals do it is that they can also replace the faulty heads immediately to keep your irrigation working smoothly.

Inspect Sprinkler Valves

Valve adjustment is sometimes necessary to ensure the irrigation system’s performance. Depending on your system, you might find valves in the areas near the heads or around the property water meter, backflow preventer, or emergency shut-off location. Valves can be located above or underground. Once you locate the sprinklers’ valves, look for water seeping from around the components. This is a warning sign that your irrigation system is wasting water and needs repairs.

Locate and Repair Leaks

Has your lawn sprinkler system sprung a leak? Turn off the equipment at the controller.

For pipe leaks, experts will do the following:

  • Remove the damaged portion of the line using pipe cutters or a saw.
  • Install couplings or repair fittings on the ends of the pipe.
  • Insert a replacement section of pipe or repair coupling.
  • Backfill and clean up the work area.

Then, they’ll test the system to see that the sprinkler service has done its job.

Get Professional Help With Lawn Sprinkler Upkeep From Our Seasoned Irrigation Crew

Don’t worry if you don’t know how to service sprinkler systems. Our professionals at American Irrigation Repair do it all, from sprinkler head adjustments to winterization and repairs. After nearly 30 years of service, we’re one of the top, multi-award-winning irrigation companies serving Leander, Texas.

See why American Irrigation Repair has more than 2,000 positive customer reviews—call (512) 943-6080 to request our services!

A Leaking Sprinkler Valve You Can’t Count On

If there is one thing in a sprinkler system that you want to be able to count on, it’s the lawn sprinkler valves.  When the Texas heat is blistering, and the lawn is struggling you need to be able to count on them to turn on and supply water to the sprinklers.  Put the control valves need to fire when you ask them to reliably and every time.

Toro Flo-pro, a Leaking Sprinkler Valve You Can’t Count On

Toro’s flo-pro valves were popular in the 90’s especially around the Austin area.  When American Irrigation started servicing irrigation systems we’d see these valves many times per week around the Austin, Round Rock, and Georgetown service areas.  They were common and during that time some contractors seemed to prefer them.

Why Should the Toro Flo-pro Sprinkler Valve Be Replaced?

There were a handful of issues with these particular valves.  I suspect they were trying to release something new and improved with the jar-type style valve being promoted as a quicker tool-free way to enhance the serviceability of control valves.  Honestly, jar top valves just aren’t necessary if you build a high-quality valve that doesn’t need to be serviced often.

A Poor Valve Solenoid Design

In continuation of the idea of easier servicing / easier on contractors, Toro used a proprietary solenoid on the valve that was sold as quicker to install and didn’t need wire splices to connect the wires.  The solenoid was like the push-to-insert light switches where they have a copper spring-type conductor that is supposed to hold the wire and contact it.  Contact with the wire was iffy at best, and removing the wire from the solenoid would easily damage it or make it difficult to reconnect.

Later versions of the control valve were manufactured with an improved solenoid more like those sold today, however, the other issues with the valve remained.

Prone to Leaks

It was not uncommon to see the jar top threads work their way loose over the cycles.  American Irrigation Repair responded to calls finding a dead dying lawn with green dots where the flo pro valves were located.  The top of the bonnet would loosen over time causing the control valve to leak.  Often the leak would start small – roots would search out the water and you would end up with a control valve in the middle of a big wad of muddy root ball.

The Valve Diaphragms Were Notorious For failing.

The diaphragms would fail resulting in a no-open condition.  The marker for a failed diaphragm was that you could open the control valve from the controller and the solenoid would trigger but the valve would not open.  Most of the time the valve would hiss, you could hear it was trying to open.  This was caused by the bleed opening on the diaphragm becoming oversized which prevented the solenoid from being able to bleed enough water from the top of the diaphragm to open the valve.

Photo of Flo-pro with the push to insert solenoid:

Picture of the diaphragm:

 

Grouping of the valves with the later improved solenoid:

Helpful article: How To Tell If a Sprinkler Valve Solenoid Is Bad

Hunter and Rain-Bird Control Valves Have Raised the Bar

If you have toro flo-pro valves in your system, I wouldn’t necessarily replace them if they are working correctly.  Once they act up or if you see any signs of leakage you should consider replacing them with a Rain Bird DV valve, or Hunter PGV control valves which have proven to be solid reliable performers.

If you need help, give us a holler at American Irrigation Repair at 512-943-6080.  We can do a full tune-up and 20-point analysis of your system and present you with any recommendations we find.


Because of the age of these valves, I did not have recent photos so I grabbed a couple of photos from other sources so I want to give them credit and shout out below!

Sources:

https://www.lawnsite.com/threads/help-identifying-this-toro-valve-pic-attached.327979/

https://www.doityourself.com/forum/lawns-landscaping-outdoor-decor/605220-toro-flo-pro-valve-diagram.html

https://www.doityourself.com/forum/lawns-landscaping-outdoor-decor/605220-toro-flo-pro-valve-diagram.html

  • 1
  • 2

Schedule Service

"*" indicates required fields

This field is for validation purposes and should be left unchanged.

By clicking “Send Message”, I am providing express written consent to receive autodialed and pre-recorded calls, texts, and SMS/MMS with marketing communications from American Irrigation Repair regarding home services at the phone number provided above, even if the number is on a corporate, state, or national Do Not Call list. Consent is not a condition to purchase services or products.