Samsung Washing Machine - Prewash and Main Wash Detergents Dispensed Simultaneously

I have a problem with my Samsung washing machine, for some time I have noticed that when I pour the prewash and main washing powder into the dispenser before starting the washing, after pouring water into the drum by the washing machine, the main washing powder is also taken. For the test, I took out the tray and started in the washing machine and noticed that water was pouring towards the prewash chamber and at the same time water was dripping towards the main wash chamber, this is not a lot of pressure, but quite a lot of drops dripping. Is it the fault of a leaking solenoid valve or maybe something else, I am asking for hints.

Moderated By skryn:

https://www.elektroda.pl/rtvforum/topic584457.html

I have the same for my Polar washing machine. Only that it pounded on two chambers the same. It has been like that since the news. It was reported to the service, the service technician came and said that it was normal: / But I don't think so. That's why we gave it up and at first we pour the powder only into the prewash drawer. After taking the water for the first time, pour the powder into the main wash drawer again.

But in my washing machine it wasn't like that from the beginning

You can try to unscrew and clean the water dispenser, perhaps the holes or inlets of the water dispenser are clogged. These dispenser outlets are most often clogged

But if they were clogged, it probably wouldn't be drawing in the powder

And did you look at what pressure the powder is taking for the second time? Also only dripping or is the pressure normal?

I haven't checked. What would that have to do with?

If the program is set to prewash and main wash, it takes detergent from one prewash drawer for the first time. The same happens when it takes the washing powder for the main washing and in both cases it should take water under high pressure. And one more thing. After taking water, does it collect it again the first time as it should be? or not. If so, it is worth checking when it will draw water for the second time and see what pressure it is under.

I checked, set the program to the main wash and I was pouring water under high pressure the same as in the pre-wash

So, most likely, the solenoid valve is defective. There are no more options

The water feeder and solenoid valves have been replaced. The washing machine works.