Bizarre multi-hookah theory
Here's something I just randomly came up with
What if you were to daisy-chain a few hookahs together? Like remove the purge from one hookah and somehow have a hose going from the purge valve to another hookah, or rather have a multihose hookah with the other hose cut and going to another. I'd assume you'd have to have lungs of steel and not sure what the effect would be but it's a thought!