Knapsack Pressure Sprayer - B&Q

You can safely use water, most standard weedkillers, and general garden chemicals. Always check the compatibility of the chemical with plastic components and avoid solvents or petroleum-based products.

After emptying, rinse the tank, pump, and wand thoroughly with clean water. For tougher residues, a mild soap solution can be used, followed by a clean water rinse. Ensure it is completely dry before storing.

You need to manually pump the handle to build and maintain pressure. The frequency of pumping depends on how vigorously you are spraying and how quickly the pressure is dissipating. The locking trigger helps maintain continuous spray with less frequent pumping.

While not explicitly stated, the description implies a 'double capacity' pump, suggesting a substantial volume suitable for larger tasks. Refer to product packaging or retailer for exact liter capacity.

It depends on the type of fertilizer. Liquid fertilizers that are water-based and do not contain abrasive particles are generally suitable. Avoid granular or powder fertilizers that are not fully dissolved.

The sprayer comes with three different nozzles: standard, double, and flat. You can unscrew the current nozzle from the spray wand and screw on the desired alternative.

Ensure the tank lid is securely fastened. Check that the pump rod is properly seated and sealed. Verify all connections are tight. Manually pump to check for air leaks around the pump handle.

Check the nozzle for blockages and clean if necessary. Ensure sufficient pressure has been built up by pumping. Verify the liquid level in the tank is adequate.

Inspect the trigger mechanism for debris or damage. Ensure the pump is not over-pressurized. Lubricate the trigger mechanism if it feels stiff, using a silicone-based lubricant suitable for outdoor equipment.

Check all seals and connections for damage or wear. Tighten any loose fittings. If a seal is damaged, it may need replacement.