This area of the site is dedicated to researching and troubleshooting specific issues with the indexing valve through the articles below. We will try to be as comprehensive as we can but please do let us know via the contact form or by phone during our business hours if you have any unresolved issues and still need support.

Snap on Saddle and Vacuum Breaker Instructions

FIMCO snap-on saddles are an easy way to add sprinklers or vacuum breakers to a new or existing irrigation system. There is no need to cut pipes and add T fittings. Here’s the procedure for installing a FIMCO snap-on saddle with a vacuum breaker: – Apply PVC cement to the underside of the saddle. -…

Read more

Instructions for changing the Fimco Cam

Remove the four screws that attach your cam cover or zone indicator to the valve top and lift it off. There is one slot in the cam that goes all the way through, line the lob on the stem up with that slot and remove the cam. Make certain that an o-ring is present on…

Read more

Instructions for Installation of a Zone Indicator

The zone indicator works with all valve models manufactured in the past 20 years. To Install your Zone Indicator you must: Remove the four screws that attach the cam cover to the valve top. Remove the Cam Cap making sure that the O-ring on the top of the cam stays in place. Place the zone…

Read more

Replacing the Fimco Valve Top

Directions for Changing the Fimco Valve Top. Loosen the coupling from the coupling nut Unscrew the 6 or 8 screws (depending on the valve size) from the perimeter of the valve top Lift the valve top with the stem and disc assembly attached from the valve bottom making sure not to lose your screws. Work…

Read more

Replacing the Stem & Disk Assembly

Directions on how to replace your Fimco Stem and Disc Assembly: Loosen the coupling nut from the coupling. Unscrew the 6 or 8 screws around the perimeter of the valve. Remove off valve top Work the stem & disk assembly up into and out of the valve top until it disengages. Insert the new stem…

Read more

Identify an Indexing Valve

Indexing Valve Series Identification of an indexing valve is fairly straightforward. If you know the pipe size in and out you can simply consult the following list: 1000 Series – 1″ in and 1″ out 2000 Series – 1.25″ in and 1.25″ out 3000 Series – 1.5″ in and 1.25″ out 4000 Series – 1.5″…

Read more

Indexing Valve is Sticking on Zones

If the indexing valve is sticking, whether it be on random zones or on all zones, it’s usually easy to fix. Most times it’s one of a handful of issues and generally simple to diagnose. The first thing to do is to make certain the system is inactive. Once the system is inactive, remove the…

Read more

Indexing Valve is Skipping Zones

Jumping or skipping zones is the most common issue faced by indexing valves. Sadly it’s not the indexing valve causing the issue but rather how it integrates with the rest of the irrigation system and how that system is operating. For example, issue number one: The Faulty Check Valve. The check valve is used on…

Read more

Water Flowing To Multiple Zones At The Same Time

Water flowing from multiple outlets means that the disk is not seating completely inside the valve housing. This issue could be due to a handful of factors. Lack of Water Volume Without sufficient water volume, the disk won’t sit properly and water will seep into the inactive outlets.  Many people want to argue this point,…

Read more