I was speaking to Mat at Cleansmart yesterday after i read on his website about these new motors in the Airflex storm machine apparently are less prone to damage from water, Mat said that the manufactures state that water cannot get into them ! i have no idea how that can be possible even Mat said it would be better to be cautious and avoid allowing this to happen, but water ingress must be the biggest cause of vac motors blowing, so anything that reduces the likelihood of this must be a good thing