I'm thinking about getting a bong soon nothing more than $250. I've been smoking since I was 6 years, and usually I only used a bong when I was with my friend. But now I want my own. I just want to know what types of bongs there are, I know there's scientific, beaker and straight. Idk if there's more and also, I don't understand a few things such asercs/ percolatorDiffused downstem actually that's about it. But if you can just give me the basics, I will most likely get a bong with a slide not carb. So any help would be great. Thanks