Is there a point of diminishing returns for percolators? How many percs do you have to have to where it doesn’t make a difference?

This all comes down to the user.  Reality is the more the smoke or vapor passes by water, the cleaner it will be.  Theoretically, if you went through enough water you would get clean air.

We feel 3 percs max is all you need.  Past 3 percs it gets hard to pull all the air through the water, as well as the volume starts to be too much.

This would make a great experiment