Did you ever get any part of your house pressure washed? Well, if yes, how did it go? And if no, I’m guessing why you’re reading this is you’re doing research about pressure washing.
To start, pressure washing is a great method of cleaning which uses a pressure washing gun. There are two main types of pressure washing: Soft and Pressure Washing, which differs in terms of the ‘nozzle’ they use. For those who tried pressure washing their walls, this term should already be a bit familiar.
Nozzles are a component of a pressure washing and there are different kinds, labeled by color to determine the pressure. Nozzles function by increasing the velocity while also, restricting the flow, creating a variety of how the water shoots from the water gun, and how strong it is.
As I said before, soft washing and pressure washing differ with the nozzles they use. Soft washing, as the term suggests, uses less pressure. Pressure washing, on the other hand, higher. The standard psi or pounds per square inch is 500, and soft washing utilizes less than 500 psi or pounds per square inch. Pressure washing goes above 500 and can reach 4000.
Why Power Washing?
Aside from pressure and soft washing, there is another called power washing. It is basically pressure washing, but it uses hot water. A wash gun can hold four main types of nozzles being the 0-degree, 15-degree, 25-degree, and 40-degree nozzles. The higher the number, the lesser the pressure due to the area being increased.
- The 0-degree nozzle shoots straight directly onto the surface with only an area comparable to the size of a quarter. It is mainly used for cleaning multiple layers of dirt that stacked over each other as time passes.
- The 15-degree forms a sheet of water and has less pressure. This is used for melting paint from metal, masonry, and wood, and also prepping different surfaces for painting.
- 25-degree nozzles are wider, and it is used for cleaning without damaging the surface or material.
- 40-degree are for light cleaning and for fragile, glassy materials.
There are other types of nozzles which are the Soaping Black Tip Nozzle or 65-degree, Rotary Nozzle, and the Adjustable Nozzle.
As specified before, these nozzles are used for different purposes. If you used a wrong or inappropriate washer nozzle, it can cause damage to your surface or worse, might get you in danger. Here are the five dangers of using the wrong washer nozzle:
1. Damaging the surface or material.
If you used a nozzle that uses too much or too low pressure, it can ultimately damage, break, and scrape the material. For example, if you’re cleaning a fragile surface, let’s say, glass, using high-pressure nozzles such as 0-degree to 25-degree, the glass can break the glass. 0-degree nozzles push out too much force than necessary for cleaning glass.
Of course, having too much or too low pressure can not only harm your material but also the user. Higher pressures used in pressure washing and power washing are more dangerous and if mishandled, can cause fractures, burns for power washing, and skin damage.
3. Too much water.
Since the pressure is much higher, the water gushing out of the washing gun can be a little more than necessary, resulting in messier and wetter materials. If you used this on wood, the wood would get too soggy to work with later on.
4. Physical Injuries.
Abrasions and eye complications can also result if the pressure washer is not used properly.
5. It forces the water inside the walls.
The water inside the walls could render the walls too soft and make it not sturdy enough. Also, wirings are typically inside walls, and if water goes inside, a fire can result.