Home Made Hybrid Bubbler Gravity Bong bubbler with downstem and ashcatcher percolation

This is a demonstration of a home made gravity bong. Everyone knows Gravity Bongs are very harsh so I decided to tinker and see if it was possible to design a smooth hitting gravity bong. After 3 years of R & D, ended up with a gravity bong that incorporates an ashcatcher, downstem and separate mouth piece. This gravity bong has two stages of water filtration (ashcatcher and downstem), and three stages of smoke diffusion. Everything was made using 100% high quality Borosilicate glass from Europe or USA. American and European glass is scientific grade glass impervious to smoke, and tar. All removable parts use 18mm Glass joints for easy assembly/disassembly ensuring easy cleaning. This design actually took 3 years of experimentation for optimum results. The final result ended up being a gravity bong I call a grav bubbler. This seems to be the only gravity bong you use as a combinatation gravity bong and bubbler pipe. In addition you can smoke it as a straight bubbler. Both ways of smoking deliver extremely smooth hits. I have seen people take monster thick hits and swear they did not get anything as smoke is pouring out of their mouth, that is how smooth it functions. Wanted to share this with everybody to see how much interest there might be for a new type of gravity bong. I am pretty sure this is the first of it's kind. Many similar but none that do exactly what this gravity pipe does. I bet Seth Rogen would barely cough if he used this pipe. This pipe is equivalent to a swiss perc in smoothness but with very moist smoke. I know this sounds like an oxymoron, a gravity pipe that is smooth but this pipe really does accomplish that goal. Please enjoy the quick video and let me know what you think I call this the Big MkCorey in honor of the glass blower who was will to work with me to make the proper glass pieces. It is not cheap nor simple to make. Just to make the mouth piece took a lot of work. Look closely and you will see that the mouth piece needs a well sealed borosilicate ball valve. The glass blower is constantly saying he has never seen such a complex design, fortunately it is easy and very enjoyable to use.