Do you know how a high-pressure PA foam dispenser works?

The choice between a PA sprayer and a pressurized foam sprayer depends on their respective working principles.

Today, we will discuss in detail the working principles, advantages, and disadvantages of PA pots and pressurized spray pots. After reading this, you will know how to make an informed choice!

Let's start with the PA kettle:

1️⃣PA sprayer must be connected to a high pressure washer in order to use it, relying on the high pressure water from the high pressure washer to create foam.

2️⃣Working principle: High pressure water flows through a small nozzle to form a high-speed water column → Creates negative pressure to draw up the car wash liquid → After mixing, it impacts the foaming core (a sponge-like structure made of high-density steel wire) → Turns into rich foam and is then expelled.

3️⃣Note: The car wash solution will be diluted twice! The first time is during the mixing process, and the second time is when it is used and further diluted by water.

4️⃣Disadvantages: Inability to precisely control the final dilution ratio; the actual concentration of the car wash solution is very low. Although the foam appears abundant, its cleaning power is compromised.

Let's discuss the pressurized spray bottle further:

1️⃣Powered by compressed air, it can be manually inflated or connected to an inflator pump.

2️⃣Advantages: The car wash solution is diluted only once, allowing for controlled concentration, resulting in better cleaning performance and more efficient use of the solution.

3️⃣Many modern designs are dual-purpose, capable of both emitting foam and creating a fine mist, making them particularly useful during the pre-cleaning phase.

4️⃣ Disadvantages: Requires inflation (it's convenient with an inflator), the foam dries quickly, and it is recommended to apply it while wiping. Here are the opinions of netizens regarding the pressurized foam sprayer and the PA sprayer:

Netizen A: Using a pressurized sprayer has shown how much more efficient it is in terms of washing liquid; one bottle can last for almost half a year, whereas a PA sprayer may seem to produce a lot of foam but most of it is actually wasted.

Net user B: The PA sprayer has a lot of foam but doesn't clean well; the pressurized sprayer saves liquid but is labor-intensive. Why is it so difficult to choose the right one for washing a car?

Netizen C: Although the foam from the PA spray bottle looks appealing, the actual concentration is low; it is recommended to use a pressurized spray bottle for pre-cleaning stubborn stains, as the results will indeed be different!

Netizen D: Just searched for an air pump for the pressure sprayer and found that it can be purchased for 100 yuan, which is much easier than manually inflating; you might want to take a look as well!

Netizen E: Adding a pressure sprayer with an electric inflator would make it perfect. It can fill up with air in just 30 seconds, which is much more convenient than using manual methods, effectively doubling the efficiency of car washing~

Summary:

The PA sprayer is suitable for those who prioritize visual appeal and convenience, while the pressurized sprayer is better suited for those focusing on cleaning efficacy and cost-effectiveness. Personally, I believe that a pressurized sprayer would be more practical for regular car washing! What do you think?