Hi, 1. Other than the weight, you need to take note of the type and sizee of the material you are washing. Rough gauge maximum you can throw in to wash for 8 kg is 1 set of king size cotton bedsheet + 4 pillow covers - exclude quilt cover. Due to the size of the bedsheet, there might not be enough space for the drum to wash the laundry effectively if you throw in too many things to wash at one time. 2. This is the main difference between a front load versus a top load. That is why a front load is more water efficient. Perhaps you can read up how different types of washer function. To conclude, this is still normal. If you dont see water splashing, it can also a sign you throw in too many things to wash. 3. Who fits the washer for you? From what you described, the balancing mechanism/legs are not secured. Was it secured? The washer is not ready for use just by powering it up. Please read the manual. You need to secure the balancing mechanism/legs. Hope this helps. MM