I have had an air Venturi nomad ll for one year & 10 days, just stop pumping air, have been trying to talk to someone about it, called the number on the manual and no one will call me back, tried calling the seller and they won’t call me back, I am looking for something new, never again will I pay $800+ for one when there is some out there for $300 it may not say Air Venturi on it, but for $300 you can buy 2 and still save money