Washing machine - should there be bubbles?! | Mumsnet
Powder is better for your machine than liquid. I only notice bubbles in ours when there's a towel wash in - I think it's soap residue on the towels from shower gel, etc. We live in a soft water area, I only use powder. Not seeing bubbles is not something to be worried about. Most of the cleaning is done by the water and agitation.