Solo 475 is suitable for both backyard gardener and professional backpack sprayer with a capacity of 15L. UV resistant tank, reliable pumping mechanism, durable Viton® seals and unbreakable wand and trigger assembly.

Built for comfort, built to last, the Solo 475 is a rugged, German-made 15L sprayer, is top of the SOLO backpack sprayer range. The sprayer’s chemical resistant Viton seals makes them very capable of handling fertilizers and agricultural chemicals such as herbicide, pesticide, fungicide, and roundup. Top-quality materials and cutting-edge technology mean these units will deliver nothing short of optimal performance.

Why Diaphragm pumps?

Diaphragm backpack sprayers use a diaphragm pump design that provides a consistent and even pressure, which ensures a uniform spray pattern and helps to prevent over or under-spraying. Moreover, diaphragm pumps are generally more durable and long-lasting than other types of pumps, which means that diaphragm backpack sprayers require less maintenance and are less likely to break down over time.

Founded in Germany and a worldwide leader of Sprayers, Solo has been operating in Plant Protection and Pest Control since 1948. Whether you are a selective backyard gardener or a professional, you're guaranteed to find the right product to suit your requirements within Solo’s wide range of sprayers.

Key Product Features:

• Two nozzles supplied as standard – flat fan and hollow cone
• Interchangeable pump handle for left and right hand
• Unbreakable 50cm spray wand
• Height adjustable padded shoulder straps
• Large tank opening for easy filling
• Chemical resistant hose
• Solo Patented hand-piece
• Carrying handle with spray wand retainer
• Solo patented tank - High quality, UV resistant, with visible fill level markings.
• Diaphragm Pump
• Stable metal tank frame

Product Specifications:

• Capacity: 15L
• Seal (O-ring) material: Viton
• Pump type: Diaphragm
• Max. spray pressure: 4bar (58psi)
• Manual Spray Pressure Adjustment : Yes
• Weight: 5.0kg
• Dimensions (LxWxH): 37cm x 23cm x 53cm
• Manufacturers warranty : 5 years warranty for faulty manufacture.

Common Applications:

Backpack sprayers are a versatile tool used in a variety of applications, including:

• Agriculture: Backpack sprayers are commonly used in agriculture to apply fertilizers, pesticides, and herbicides to crops.
• Landscaping & gardening: Landscapers use backpack sprayers to apply herbicides and insecticides to lawns, gardens, and other landscaping projects.
• Pest control: Pest control professionals use backpack sprayers to apply insecticides and other pest control products to homes, buildings, and other areas where pests may be present.
• Forestry: Backpack sprayers are used in forestry to apply herbicides to control invasive species and promote the growth of desired plants.
• Construction: Construction workers may use backpack sprayers to apply water or other liquids to concrete, masonry, or other construction materials to aid in curing or cleaning.
• Cleaning: Backpack sprayers can be used for cleaning tasks such as applying sanitizers, disinfectants, or cleaning solutions to surfaces.

Overall, backpack sprayers are a convenient and effective tool for a wide range of applications where a portable and easily manoeuvrable sprayer is needed.

Knapsack Sprayer Maintenance Tips

• The unit is NOT a pressure vessel. It requires a constant gentle up and down motion of the lever to keep pressure within the pump chamber. This gives a uniform flow through the spray nozzle.
• If spray still comes out of the nozzle when the trigger is closed, this is caused by compressed air bubbles in the lance tube. On first use for the day and between each charge, spray into the air to purge this air out of the lance tube through the nozzle. The spray will then shut-off instantly. The same will also need to be done If you extend a telescopic lance during use to expel the air drawn in through the nozzle.
• Sand & dirt allowed to get inside the inlet will generally jam the shut-off valve and trigger. This will prevent impede spray action and can be prevented by storing the unit in the garden shed when not in use.
• To avoid leaks during usage, ensure that all connections are securely and firmed tightened. Also check that the hose and lances do not slip out.
• Must not exceed the 15L mark on the 15L Knapsack sprayer.
• We recommend having separate dedicated sprayers for garden fertiliser and for weed killers. To avoid any accidental mix up during use, these units must be appropriately labelled for identification.
• Ensure that the sprayer is not pressurised and does not contain any liquid during storage.