Marksman Knapsack Pressure Sprayer – Backpack Garden Sprayer

A Full Tank on Your Back for Treating a Whole Growing Space in One Fill

The Marksman Knapsack Pressure Sprayer carries a 12 or 16 litre tank on a shoulder strap, so you can treat a greenhouse, polytunnel, grow room or garden without stopping to refill a hand bottle. A double-capacity plunger pump builds pressure by hand, with no batteries to charge, and the adjustable spray lance with adjustable flow rate takes you from a fine mist for foliar feeds to a directed jet for spot treatments. A locking trigger holds it open for continuous spraying, a quick-release strap and carry handle make it easy to put on and move when full, and the large filler with an integrated filter keeps debris out of the pump and nozzle. It suits most garden liquid chemicals, foliar feeds and plain water.

Key Benefits

• 12 or 16 litre capacity — fewer refills when treating larger areas.
• Double-capacity plunger pump — builds working pressure quickly by hand.
• Adjustable lance and flow rate — fine mist for foliar feeds, jet setting for spot treatments.
• Locking trigger — continuous spraying without holding the trigger down.
• Quick-release strap and carry handle — easy to put on, take off and carry when full.
• Large filler with integrated filter — easy to fill and helps stop the nozzle blocking.

Uneven Coverage and Constant Refilling

Treating a full greenhouse or a row of beds with a one or two litre hand sprayer means constant refills, aching hands and patchy coverage where the pressure drops between pumps. A knapsack spreads the weight across your back, holds pressure for longer and lets you work along the crop at a steady pace, so foliar feeds and treatments go on evenly, including the undersides of the leaves.

How to Use

• Mix first: dilute concentrates as the product label directs, then pour through the filter in the filler opening.
• Pressurise: close the lid and work the plunger pump handle until you feel firm resistance.
• Set the spray: adjust the lance and flow rate to suit the job; use the trigger lock for long runs.
• Before refilling: spray out or let off the remaining pressure before opening the tank fully.
• After use: rinse the tank and spray clean water through the lance; keep one sprayer for treatments and another for feeds if you use both.
• Protect yourself: wear gloves and follow the safety directions of whatever product you spray.

Works Well With

Titan Grip Diamond Textured Black Nitrile GlovesHand protection when spraying treatments Measuring Jugs & CupsMeasures concentrates before they go in SB Plant InvigoratorA spray-on pest control and foliar feed