I already using the washing powder before testing thereof. Actually there is no provided feeder, I just learned by reading other reviews we could get one for free upon request from Ariel. Meanwhile he must do so, by inventing its unit ;-) It's been over a month since I use it and I have no trace of concern on the less well washed clothes or laundry. By cons I always put the powder in the compartment of my washing machine, never directly into the drum ...
She feels strong enough at first but the smell fades little by little, however RAS on the laundry. Finally I find attractive price compared to other products.
