the tubes a vacuum, similar to why a siphon stays primed.buddha1200;3655988; said:thats awesome,not sure how the water stays in there but hope someone does,would love to do something like that in my daughters room.
doggy feeder doesnt work on the concept of a vacuum(or whatever the technical name for whats going on in the water), the friction and force of the food on the bottom keeps it in.dragonfish18;3656024; said:u can probly open up the top panel with the same concept of a doggy feeder