What the hell is a solo cup
 

Im gonna bulid the 11 pipe hydroponic system. Im a new grower so i dont know much What the hell is a solo cup, I know it goes inside of the 2 litter bottle thats all. And what do you use to grow, I mean, What do you put inside of the 2 litter bottles, soil just water, rockwool, ect. Another thing is the pump. What is its specific name so i can ask for it in a store and were do i get it?

A solo cup is just a plastic drinking cup sold everywhere.
The cup are used to hold the grow rocks. (a man made clay fired ceramic material.)
The pump used are called submersible pumps. They are rated GPH (gallon per hour) and you need one around 100 GPH.