Hello - Im just wondering why when I put my Hotpoint WMUD843p washing machine onto fast wash 30 (30c) 800rpmthat the Drum rotates as its taking in water and washing powder but when I put it on fastwash 60 (60c) 14,000rpm does it fill up with soap powder and water then drum doesnt start rotating until the water level get to bottom of drum, then it rotates, then fills up but as its filling dont rotate whilst its filling? - its no big deal but I just cannot under stand why it rotates on 30c same time when filling but dont rotae same time when filling at 60c?