I just wondered this today. When you a stain on a shirt or on your body, you have to really scrub to get it out. Just rinsing it with water wont remove the stain. So how do machine washer clean clothes so well without using any type of pressure?
I have seen stains come off from clothes, and its really impressive.
In: 1
They don’t. The water itself is providing the pressure. Some machines also use agitators for frictional force.
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