Welcome Page Body
Welcome to the residential rotor support section. Below you can identify the rotary sprinkler model you may have and find information on installing, adjusting, maintaining and troubleshooting your rotor.
The performance cards will assist you with performance data, rotor installation, nozzle installation, nozzle part numbers, and basic adjustment instructions. Choose from the
SRM Nozzle Installation
If the top of the screw is below the top of the turret, the screw must be turned counter-clockwise until it is flush with the top before removing the nozzle. If the screw is flush
Matched Precipitation Rates
Precipitation rate is the speed at which water is being applied to a specific area. If you have excessively wet or dry areas, you can change the nozzle in the sprinkler to increase
PGP Riser Seal Replacement
Installing a new riser seal on a PGP rotor will increase the durability and life of service of the rotary sprinkler. Follow these simple step-by-step instructions to replace the
It's important to have an irrigation design plan, and hydraulics (PSI and GPM) inspected at the site before installation. If necessary, please contact a professional. Hunter
The trajectory and spray height of the water stream leaving a sprinkler nozzle is important information when designing and installing irrigation systems.
The HUNTER ADJUSTMENT WRENCH consists of a 3/32 Allen key, two convenient finger loops for gripping, and an opposite side arc adjustment key for all your Hunter rotor adjustments.
Arc Adjustment Adjustable heads are preset to approximately 180 degrees. The PGP-ADJ is adjustable from 40-360 degrees. The PGP Ultra is adjustable from 50-360 degrees.
Align Right Fixed Side
If the right side of the arc is not properly aligned, the results may be a wet walkway or a dry turf area. The right side arc can easily be realigned. NOTE: Prior to making the
The included filter at our residential rotor base will protect the internal gear drive from larger particles for longevity. In some cases, the filter can be plugged, slowing down
Replace Another Brand Rotor
Yes, if you know the model of the existing manufacturer's sprinkler, you can use our Replacement Charts to find the appropriate Hunter pop-up or rotor that will
The easiest of the rotor pressure gauges to use, the Rotor Pitot Gauge (P/N 280100), has a tube placed directly in front of the primary nozzle stream for an accurate working
Side Rotor Holes
It's a combination drain hole and flush hole. It's a drain hole because we need to drain the water from below the nozzle turret so it doesn't push up on the nozzle
Shutting off A Rotor
A blank nozzle is available as part of the Low-Angle Nozzle Set (PGP-ADJ P/N: 233200 & PGP Ultra/I-20 P/N:356605SP), which can be inserted into the rotor to shut off the flow of
Capping Off Irrigation Head in Ground
Capping or removing a sprinkler is done differently depending on whether or not you live in an area that freezes and requires the irrigation system to be winterized. Winterizing
Nozzle Does Not Fit in Rotor
The PGP-ADJ, PGP-ULTRA, PGJ, and SRM Rotors are compatible with many types of nozzles to optimize watering in various landscapes. Each model uses specific nozzles and they are not
Rotor Stopped Rotating
Hunter rotary sprinklers operate on a “gear drive” system. When in operation, water turns a small turbine in the base of the sprinkler, which drives a series of gears that cause
Doesn't Fully Pop-up
Rotary sprinklers require a certain amount of pressure and flow to operate properly. If the rotor does not receive the pressure it needs to pop up a leaky head will result.
Leaking Riser Stem
Hunter rotors have replaceable riser seals that may wear out over time. Sandy soils, sunken heads, or extremely hot and cold temperatures may also cause a seal to wear out
Production of the G-Type rotor was discontinued 14 years ago, though many are still in use today. If a G-Type rotor needs to be replaced, the PGP-ADJ or PGP-Ultra is the current
PGP - Installing Drain Check Valve
If you’re PGP heads are leaking water after the system is shut off and the flow of water reduces over time, your heads are experiencing low head drainage. Low head drainage is
Shrub Staking Kit
The rotor staking kit is designed to stabilize the shrub rotor while installed above ground. This rotor accessory is predominately used on slopes, either with the lateral pipe on