Or maybe your bottle is great, but it is not equipped with a pump.

　　No problem.

　　If it is a standard size bottle, it is very likely that there is a pump that can be used with it.

　　However, there are many factors to consider when choosing the right pump for your refillable bottle. What size do you need? Is it suitable for lotion or soap? Are there any construction codes that need to be paid attention to? Does it matter if it's plastic or metal? and many more.

　　Bottle pump anatomy

　　Before we learn more about how to choose the right pump, it is important to understand how the bottle pump is made, how these parts work together, and how complex they are.

　　You might think that the pump for refillable bottles is a simple machine, but in reality, it is very complicated.

　　Looking at this picture, we used one of our most commonly used pumps in refillable shampoo, conditioner, and liquid soap bottles.

　　Please note that there are many small parts that must cooperate with each other to finally get the soap into your hands after you press the pump.

　　Each color in this photo represents a separate part of the pump.

　　There is even a small glass ball at the bottom of the pump, which, together with the spring, piston and valve stem, helps to regulate the flow of liquid through the mechanism.

　　For a great article explaining how the lotion pump works, see What's inside the lotion pump and how does it work?

　　Do you see the thin tube inside the spring?

　　The thin piece of plastic prevents your shampoo from contacting the spring, so it will not corrode over time.

　　Cool, right?

　　The lemon green strip under the top of the lid is a round gasket, which is always installed around the lid to ensure a tight fit and prevent any leakage.

　　This is just a glimpse of the complexity and mechanism of the lotion pump.

　　So, with this knowledge in mind, let us continue to discuss some considerations when buying the perfect pump for your refillable bottle.