For years we've used fairy non bio powder or pods on the insistence of my husband and his sensitive skin. The washing has never smelt of anything strong afterwards. After being at my parents and using their ariel pods I was amazed at how fresh the laundry smelt for ages afterwards and decided to buy some for myself at home. Fast forward to now and I've just tried them but the washing still doesn't smell nice! So I'm guessing it's the machine/programme but I used similar timed programmes so guessing the machine but I've checked the seal for mould etc but there's none. I will try cleaning it but the only other thing I can think of is we have hard water they have soft - could that be it?