Well I have to agree with BB, in my experience washball are carp! I must have used them for about 3/4 years, as my middle son, matthew, had reactions to certain wash powders, liquids and conditioners.
Occassionally certain items would come out of the machine stinking. Even though they did not smell before they went in!
The final straw for me was when matt came home home from a bike ride covered in oil, problem chain that he managed to fix, and in the process got his white top covered in oil. After all sorts of stain removers we did manage to clean it, using swarfega. Put the shirt into wash with the wash ball and couldn't believe the result. Where we had used the swarfega to remove the oil stains, the shirt was a white/white the rest of the shirt was a grey dingy white! Tried other white tops, marked them with stain remover in stripes, washed them with the ball and the same effect, where the stain remover had been, was whiter than the rest of top.
Also was sick of finding broken balls in machine as well. Drove OH nuts finding the pellets all over the floor!
Went back to using non-bio liquids that you placed into the drum with the clothes and the low temps that they recommended, untill reading a post by BB few months back. Now using bio powders at 50/60 temps, unless delicate clothing. Using less powder than I would have years ago, so no too-much-powder-used build-up either. Now i have no probs with washing and stains, and the best thing is the black mould that wanted to grow in the dispenser drawer is no longer there, and the manky smell from inside the machine has gone.
Thanks BB :mysmilie_12: