8 Step Guide to Soft Washing solar panels with extendible lances

Introducing Pumps Australia’s Soft Washing Solution for Sparkling Solar Panels!

Are your solar panels losing their shine and efficiency? Dust, debris, and grime can significantly reduce their performance. But worry not! Pumps Australia brings you an innovative solution to help regain your solar panels’ efficiency and keep them clean. Our Soft Washing medium-pressure system, equipped with a 7-meter extendable lance (Fig 119), offers a safe and effective cleaning method. Let us guide you through the simple steps to achieve spotless panels and maximize your solar energy production.


Step 1: Prioritize Safety

Safety always comes first! Ensure you’re equipped with protective gear like gloves, safety goggles, and non-slip footwear. Clear the area around your solar panels from any obstructions or hazards.

Step 2: Preparing Your Equipment

Connect your pressure washer or spray pump to a water source, ensuring it’s in optimal working condition. Attach a low-pressure nozzle or our special wide-angle fan spray nozzle to the extendable lance. With the pressure set to medium (around 1000-1500 psi), you’ll avoid any damage to your precious solar panels. If you don’t own a pressure washer, we recommend these models for this application:

Recommended Pressure Washers



Step 3: Begin with a Pre-Rinse

Gently rinse your solar panels with water to eliminate loose debris, dust, or dirt. Using the extendable lance, sweep water from the top downwards in a smooth motion. This technique effectively loosens dirt without exerting excessive pressure.


Step 4: Apply the Soap

Follow the manufacturer’s instructions to dilute a mild detergent or our specially formulated solar panel cleaning solution with water. Pour the mixture into our low-pressure foamer (See below for options), or use a chemical injector attachment if available. Start from the top and work your way down, applying the soapy foam to the panels.

Our Range of Foaming Devices

Step 5: Let It Dwell
Allow the detergent to dwell on the surface of your solar panels for a few minutes. This crucial step aids in breaking down and loosening stubborn grime and unsightly bird droppings.

Step 6: Soft Washing at its Finest
With the extendable lance, adjust the water pressure to a medium setting, ensuring it remains gentle enough to protect your panels. Start from the top once again, rinsing off the soapy residue and dirt. Using a side-to-side sweeping motion, maintain a safe distance between the lance and the panels to prevent any potential damage.

Step 7: Give it a Final Rinse
Once you’ve cleaned all the panels, perform a final rinse with clean water. Begin from the top and work your way down meticulously, ensuring every last trace of soap residue is thoroughly rinsed away.

Step 8: Let Nature Do Its Magic
Allow your solar panels to air dry naturally. Avoid using towels or squeegees, as they could inadvertently scratch the surface or leave unwanted lint behind.

Remember, while soft washing your solar panels is generally safe and effective, it’s perfectly understandable if you prefer to leave this task to the professionals. If you’re unsure or uncomfortable performing the cleaning yourself, we recommend hiring a reputable solar panel cleaning service. Rest assured, our Pumps Australia Pl – Solar Panel Soft Wash HP machines are available in Electric, Petrol, Diesel, and hydraulic power systems, ensuring there’s an ideal solution for every cleaning need. 

Unlock the full potential of your solar panels with Pumps Australia’s Soft Washing system. Regain their efficiency, extend their lifespan, and embrace the brilliance of clean energy. Get your Soft Washing solution today and witness the difference!

Our Range of High Pressure Lances

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Pumps Australia is a unique force in the Pumping and High-Pressure water industry as we are continually researching and developing new initiatives to endeavour to improve our products to meet your changing needs.