Osvrat I am not that familiar with the stones but believe the disk type membrane diffusers will handle a lot wider range of flow rates and still be within operating parameters. Thus if you choose the right diffuser there likely would be no need to bleed off air, unless for some reason you just want to turn less water volume some times.
I think a single diffuser disk is around 30 bucks or there abouts. More if you want a factory base to go with it. You can see both the factory bases and a concrete one I made in the links I gave you above.
Last edited by snrub; 02/03/17 09:02 AM.
