A vortex forms immediately despite one vertical pipe.
Additional vertical pipes are unnecessary
if the air duct is connected too low, some air enters the tank horizontally, blows through the vortex.
According to my tests, the air hose should be connected at the height of the tank outlet, not below
Additional vertical pipes are unnecessary
if the air duct is connected too low, some air enters the tank horizontally, blows through the vortex.
According to my tests, the air hose should be connected at the height of the tank outlet, not below