Dramm Syphonject Hose-End Siphon Mixer — 20:1 Fertilizer Injector with External Check Valve

The Dramm Syphonject is a lightweight siphon-style hose-end mixer that automatically dilutes concentrated solution at approximately a 20:1 water-to-solution ratio for easy fertilizing while you water.

If you want to feed plants and water at the same time without mixing separate batches of weak solution, the Dramm 22625 Syphonject pulls a concentrated feed from a reservoir and injects it into your watering stream. Designed from corrosion-resistant plastic, it connects to a standard garden hose and relies on water flow to draw solution through a flexible suction tube. An external check valve prevents backflow into the reservoir, and a stainless-steel filter spring helps reduce clogging for reliable operation.

How does the Syphonject mix fertilizer while I water?

The Syphonject uses venturi siphon action: moving water creates suction that draws concentrated solution through a suction tube, then blends it into the water flow at the nozzle. The result is automatic dilution as you irrigate, removing the need to pre-dilute fertilizer in large volumes.

• Typical dilution approximately 20 parts water to 1 part concentrate.
• Suction tube reaches into a separate bucket or container of concentrate.
• Water flow powers the siphoning—no batteries or electricity required.
• External check valve prevents water from flowing back into the solution bucket.

What water pressure, hose length, and nozzle are required for best performance?

The Syphonject needs adequate water pressure and a short hose run to maintain consistent siphoning. Use a full-flow nozzle and keep hose length moderate to ensure steady suction and correct dilution.

• Minimum faucet pressure: 35 psi for reliable suction.
• Recommended maximum hose length: 50 feet to avoid pressure loss.
• Use a full-flow nozzle—Dramm’s 170 water breaker is recommended for even distribution.
• Longer hoses or low-pressure systems may reduce feed rate and alter dilution.

How does the Syphonject resist clogging and backflow?

Two simple design features reduce maintenance and protect your concentrate container. A stainless-steel filter spring sits at the suction inlet to limit debris entry, while an external check valve stops water from flowing into the solution bucket when the hose is off.

• Stainless-steel filter spring at the inlet reduces particle ingestion.
• External check valve prevents back-siphon into the reservoir.
• Lightweight corrosion-resistant plastic body resists rust and chemical damage.
• Easy-to-inspect suction tube for quick cleaning or replacement.

What do I get in the box and how simple is setup?

The mixer includes the Syphonject body, a flexible suction tube, and a 170PL nozzle for immediate use. Assembly is straightforward—attach to a standard hose, insert the suction tube into your concentrate container, and select a full-flow nozzle setting to begin watering and feeding in one step.

• Includes Syphonject body, flexible suction tube, and 170PL nozzle.
• Quick attach to standard garden hose—no tools required.
• Works with most water-soluble fertilizers, soil amendments, or soluble feeds in a separate container.
• Lightweight design makes it easy to move between beds, pots, or greenhouse benches.

Who is this for? The Dramm Syphonject is ideal for hobby and small-scale commercial growers who water and feed frequently and want a low-effort, cost-effective delivery method. It suits gardeners using soluble fertilizers, plant nurseries needing uniform feed during irrigation, and anyone with a standard-pressure hose setup (35 psi or greater) and up to 50 feet of hose. If you need a simple, portable injector that mixes on demand and minimizes handling concentrated solutions, the Syphonject offers reliable performance without electrical components or complex plumbing.