Gilmour Adjustable Circular Swivel Sprinkler

Gilmour Adjustable Circular Swivel Sprinkler – Model 820133-1001

What type of lawn is this sprinkler best suited for?
This sprinkler is designed for medium to large lawns with established, mature grass and vegetation. Gilmour recommends it specifically for mature lawns — the multi-stream turbine nozzle delivers water at a rate and force better suited to established root systems. For newly seeded lawns or delicate seedlings, consider the Gilmour Oscillating Sprinkler, which provides a gentler, rainfall-like pattern ideal for new growth.

How do I adjust the spray to cover only part of a circle?
Two red rotary levers on the sprinkler body control the left and right boundaries of the spray arc. Move them apart to reduce the sweep to a partial circle — ideal for corners, fence lines, or areas where you don't want water hitting walkways or structures. Push both levers together to activate a full 360° rotation.

How do I control how far the water reaches?
The top-mounted distance control knob adjusts the spray throw. Turn it to reduce the radius for smaller target areas, or open it fully for the maximum 35-foot spray distance. This lets you customize coverage without changing nozzles or hose pressure.

What kind of hose connection does this sprinkler use?
It connects to any standard garden hose with a ¾" GHT (garden hose thread) swivel coupling — the same thread found on virtually every residential outdoor faucet and hose. No special adapters are required. The swivel design allows the hose to rotate freely, reducing kinking and making connection easier. To add a timer, simply attach a hose-end irrigation timer between your faucet and the hose.

Can I connect multiple sprinklers together?
Yes. The Gilmour Circular Swivel Sprinkler includes a series connection port that lets you daisy-chain additional sprinklers. This is useful for watering two separate lawn zones or a long, narrow side yard from a single hose bib. Keep in mind that each additional sprinkler reduces the available water pressure — check that your home pressure is sufficient to power all connected heads effectively.

What water pressure does this sprinkler require?
It operates across a very wide pressure range: 15 to 150 PSI. Most residential water systems fall between 40–80 PSI, which is well within this range. If your water pressure is on the lower end, you may see a reduced spray radius. If your pressure is very high (above 80 PSI), consider adding a pressure regulator at the faucet to protect fittings and ensure even spray distribution.

How does this compare to the Gilmour Oscillating Sprinkler?
The Circular Swivel Sprinkler covers a circular or partial-circle pattern — best for round or irregularly shaped lawns. The Gilmour Oscillating Sprinkler moves back and forth in a rectangular fan pattern, covering up to 3,900 sq. ft. — ideal for rectangular yards, new growth, or delicate gardens. If your lawn is more square or rectangular, the oscillating model is typically a better match.

What is the warranty on this sprinkler?
Gilmour backs this sprinkler with a Lifetime Warranty against defects in materials and workmanship. If your product fails to conform to this guarantee, visit Gilmour's website for details on obtaining a replacement product of equal value. Proof of purchase is required.

Can I automate this sprinkler on a schedule?
Yes. Because it connects to a standard garden hose, you can easily automate it by adding a battery-operated hose-end timer between your outdoor faucet and the hose. DripWorks carries a full range of irrigation timers and controllers compatible with any hose-end sprinkler.