Hills 16L Heavy Duty Viton Knapsack Backpack Garden Pressure Sprayer Plus 100737

Hills 16L Heavy Duty Viton Knapsack sprayer is a sturdy sprayer for medium to large garden or commercial spraying tasks. Designed and manufactured to be used for vast residential and commercial applications ranging from pest control, wood treatments, acid alkali solutions, horticulture, animal care, cleaning, and sanitation.

Hills Garden products have been part of Australian outdoor since 1946. Hills is now a household name and has evolved into a market leader in the supply of high-quality home & garden products.

The sturdy backpack Hills 16L Heavy duty Sprayer with Chemical resistant Viton Seals is a great backpack sprayer for home Garden and Commercial applications.

Features:

• Chemical resistant Viton Seals suitable for wide range of residential and commercial applications.
• Large 16L tank capacity with a filter basket.
• Adjustable Padded shoulder straps for enhanced comfort.
• Lightweight Fibreglass lance & extension lance.
• Can be assembled for left and right-handed usage.
• Single and dual, multi-directional spray nozzles.
• Comfortable, moulded pump handle.
• Ergonomic trigger handle provides easy grip.
• Tough, UV stabilised bottle.
• Simply action to depress the trigger for intermittent spot spraying. The handle assembly can also be locked for continuous spraying.
• Fibreglass lance & extension lance.
• Easy to assemble.
• Adjustable spray nozzles.
• Sturdy sprayer suitable for wide range of chemical applications such as pest control, wood treatments, acid alkali solutions, horticulture, animal care, cleaning, and sanitation.
• Weight of empty sprayer on your back: 4.6kg
• 3 years warranty for faulty manufacture.

What are the most common Sprayer seal types and their differences?

Despite seeming like a small detail, a valve's O-ring material is very important. The interior seals inside of a pressure sprayer perform several important functions. They help the pump to operate efficiently and keep liquids from dripping or leaking. Chemicals can be very caustic and can damage the internal seals. The two most common type of seal materials are:

VITON seals:

Viton fluoroelastomer seals are known for its broad chemical compatibility. These dense synthetic rubber polymer seals are 4 times more resistant to degradation and are hard wearing than generic seals. Its is commonly employed in various gasket, O-ring and other rubber sealing solutions, such as automotive seals, transportation fuel applications and aerospace seals, pumps and valves.

Viton seals are compatible with aggressive solutions to prevent the liquids from causing mechanical damage to the pump system. Viton seals also work with solutions that contain oil or solvents and are the best choice for solutions within the pH scale of 1-7.

EPDM Seals:

Similar to Viton seals, EPDM seals also weather resistant, highly flexible, will recover well after being compressed / squeezed, and can be stretched to a great extent without breaking. The primary difference between Viton and EPDM is in their chemical resistance. EPDM is compatible with a broad range of water-based chemicals used for residential applications, has excellent low temperature tolerance, while also being much economic compared to its counterpart.

What are the most common types of Garden Sprayers?

• Pressure sprayers or Tank sprayers – This is the most used Garden Sprayer type. As the name suggests, this type of unit includes a tank to mix the treatment liquid. With such units the user can control the amount of water and fertilizer to be dispensed with minimal effort and hassle. Pumping the handle few times pressurises the air within the container. A control lever on the wand is then used to dispense the product as needed.

Pressure sprayers come in varied sizes i.e., capacity, ranging between 1L to 8L. A garden hence needs to take into consideration the intended job to use the sprayer and the size of your garden. For instance, big sprayers are not suitable for indoor needs as they will eject larger volume of the solution than required.

• Knapsack sprayers or Backpack sprayers – As the name says, this type of sprayers can be carried on your back with the help of a harness. A knapsack sprayer is used for efficiently covering a larger area. The container size of such sprayers is designed for larger capacity typically 12L or 16L.
• Hose end sprayers – These units are attachable to the end of the hose. The smaller sprayer bottle in this case holds the concentrate liquid and the water from the hose mixes with this concentrated solution, therefore, diluting it while spraying.

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 12L mark on the 12L 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.