I made a 1 gallon monster bong, I took a 1 gal apple cider bottle and plugged a cork in it, airtight seal. I took my bowl and downstem and drilled a hole so that fits tight, then just took a thick tube and drilled another hole so that it reaches into the chamber, the downstem goes all the way down into the water. Excuse my crude paint drawing. The bowl is a cured hardwood bowl with screw on downstem from mah local smokeshop. Any comments or constructive critisism would be nice. Excuse my spelling, lol, it sure does hit nice and smooth.