The valve on the bottom of the water bucket is not being pushed up enough to allow the vaccuum to go through. Perhaps a part is missing but I used a small ball bearing and a car vaccuum cap to build it up and now our works but it is still a piece of ****. I hope this helps

Today lemonaide is made of artificial flavors and furnature polish is made of real lemons.
Believe me that alot of stuff now is **** and you will find that out. I have to fix most stuff that comes right out of the box before we can use it. If I cannot I take the darn thing back. Welcome to the real world of the industry standards that have no ethics anymore.