Pressure washing can be a transformative tool for cleaning various surfaces around your home or business. Whether you’re washing a driveway, deck, or siding, a pressure washer can make quick work of tough dirt, grime, and mold. However, improper use can lead to costly mistakes, damage to surfaces, or even injury. To ensure that your pressure washing project goes smoothly, here are some key mistakes to avoid.
1. Using Too Much Pressure
One of the most common mistakes people make when using a pressure washer is setting the pressure too high. High pressure can cause significant damage to surfaces, particularly soft materials like wood, vinyl siding, or delicate brick. For example, using too much pressure on a wood deck can cause the wood to splinter or strip away its protective finish. Similarly, blasting vinyl siding with high pressure can leave permanent marks or even dislodge the panels.
To avoid this mistake, always check the recommended pressure settings for the material you are cleaning. Most pressure washers come with adjustable settings or various nozzle tips that can control the intensity of the spray. Use the lowest pressure possible that will still get the job done efficiently.
2. Holding the Wand Too Close
Another common error is holding the pressure washing wand too close to the surface. The powerful stream of water can be too concentrated, leading to streaking, surface damage, or unnecessary wear. When washing surfaces like concrete or brick, it’s important to maintain a safe distance from the surface—usually around 12 inches or more, depending on the material. For softer surfaces like wood or vinyl, you should maintain an even greater distance.
By holding the wand too close, you can also risk splashing water into windows or doors, potentially damaging seals or causing water to seep into your home.
3. Using the Wrong Nozzle
Pressure washers come with a variety of nozzles, each designed for specific tasks. Using the wrong nozzle for the job is another easy mistake to make. Nozzles typically range from a wide, low-pressure spray (typically marked as 40°) to a narrow, high-pressure stream (0°). While the high-pressure nozzle is great for tough stains on concrete, it’s not suitable for washing a car or delicate surfaces.
To avoid this mistake, make sure to select the right nozzle for the surface you’re cleaning. A wider spray (25° or 40°) is perfect for washing larger areas like decks or house siding, while a narrower spray (0° or 15°) should only be used for stubborn stains or heavily soiled surfaces. Always read the instructions on your pressure washer to know which nozzle to use for different tasks.
4. Not Prepping the Area
Preparation is key to a successful pressure washing job. Many homeowners make the mistake of starting to pressure wash without properly preparing the area. Failing to remove debris, furniture, or plants from the area can cause accidents, block water flow, or even damage your property. Additionally, washing over dirt or loose debris can result in uneven cleaning or scratching the surface.
Before starting, clear the area of any items that might be in the way. For areas like driveways, remove any stones or debris that could be dislodged by the pressure. Cover nearby plants with a tarp or plastic sheeting to protect them from the strong spray and detergent.
5. Not Using Detergent When Necessary
Pressure washing is more effective when combined with the right detergent. For tasks like washing your car, cleaning mildew off siding, or tackling grease stains on your driveway, a detergent formulated for pressure washers can significantly improve the results. However, many homeowners make the mistake of not using detergent when necessary, thinking that just water pressure will do the job.
Detergent helps break down oils, grease, and organic stains like mold and mildew, making it easier to wash them away. Make sure to apply the detergent first (using the low-pressure nozzle) and allow it to sit for a few minutes before rinsing with high pressure. This will maximize the cleaning power and save you time.
6. Not Knowing the Surface’s Condition
Every surface is different, and it’s essential to understand the condition of the surface you’re cleaning. For example, old, deteriorated wood or paint may not withstand high-pressure water and could be damaged or peeled off. Additionally, delicate materials like asphalt or roofing shingles can be easily eroded by powerful jets of water.
Before pressure washing any surface, assess its condition and test a small, inconspicuous area first. If the surface is in poor condition, it may be best to avoid using a pressure washer altogether or consult a professional for advice.
7. Ignoring Safety Precautions
Pressure washers can be dangerous if not handled properly. The intense force of the water stream can cause injuries, particularly if the nozzle is pointed at the body or someone else. Additionally, using the pressure washer while standing on a ladder or wet surface can increase the risk of falls.
Always wear safety gear, such as goggles, gloves, and non-slip footwear, when using a pressure washer. Be sure to read the manufacturer’s instructions thoroughly and understand how to operate the machine safely. It’s also important to keep children and pets away from the pressure washing area.
8. Not Cleaning the Pressure Washer After Use
After finishing a pressure washing job, many people neglect to properly clean and store their equipment. Failing to clean the pressure washer can lead to clogs, rust, and damage over time. Detergent residue, dirt, or debris can build up in the nozzle or hose, making it harder for the machine to work properly the next time you need it.
After use, make sure to flush the pressure washer system with clean water and store it in a dry, safe place. If the machine has a filter or nozzle, clean it to prevent any blockages. Regular maintenance can extend the life of your pressure washer and ensure it performs at its best.
Pressure washing is an effective and powerful cleaning tool when used correctly. However, mistakes like using too much pressure, holding the wand too close, or neglecting safety precautions can lead to costly damages or even injuries. By understanding the correct techniques, selecting the right nozzles, and preparing the area properly, you can ensure a successful and safe pressure washing experience.
