High Efficiency detergent generates low suds during working condition, which provide much more clean washing result than normal detergent.
Why? Please read article from “http://www.tidbitsandstuff.com/household-tips/laundry/141-front-loaders-and-high-efficiency-detergent/“
A front-loading washing machine needs a special detergent . It’s called HE (High Efficiency) detergent. Without HE detergent your washer will not clean properly. Using regular detergent may even cause your front loader mechanical problems.
HE detergent is a type of non-sudsing detergent. In fact, while operating, the machine almost appears not to have any detergent inside.
Unfortunately, we have become so used to seeing suds in our old washing machines that we mistakenly relate the presence of suds to proper operation. Nothing could be farther from the truth.
An old fashioned top loader washes your clothes by constantly tumbling them through a full tub of water. Your front loader works differently.
In a front loader your clothes are picked up by the vanes inside the drum, lifted to the top of the drum, and then dropped into water laying at the bottom of the drum. This collision of clothes and water will dislodge the dirt from the clothing fibres. Later the drum stops turning, the water flows out the bottom of the drum via the pump, taking both water and dirt out to the household drain. Finally the drum is spun at very high speed to remove the final amounts of water, dirt and detergent from the clothes. This front-loading method of cleaning your clothes is both simple and dependable.
But, this simple method stops working if there are too many suds being produced by your laundry detergent.
If you use regular detergent in your front loader excess suds will be produced by the interaction of the detergent and tumbling water. These unwanted suds will accumulate at the bottom of the wash drum where they will lie on top of the water. Within minutes these suds will take the form of a big fluffy cushion. This cushion hinders clothes from reaching the water. As your clothes fall from the top of the drum to the bottom they hit the suds cushion rather than the water. The result is a very poor wash.
Even owners of front loaders who are using the correct detergent can misunderstand how to use it properly. Not seeing any suds they think they require more detergent. They keep increasing the amount used per load until suds finally appear. This can be a costly mistake that again results in a poor wash.
Using too much detergent is as bad as using the wrong detergent. Extreme amount of detergent can produce symptoms such as leaking, vibration, noisy operation, and poor spinning.