How can you make a suction funnel?

[blueskine]

I have been reading that using a suction or Büchner funnel during filtering of the harmala extraction can create extremely pure extraction. Is there a way to build one, so, you don't have to buy one?

I can see how this could be handy for other extractions, too.

Thanks.

 

[endlessness]

building your own improvised vacuum filter - FAQ - All your basic questions and answers - Welcome to the DMT-Nexus

 

[blueskine]

Perfect thanks.