Would a 25 micron screen work as my filter?
yes? wouldnt recommend it for this reason tho...
trichome heads are on avg 74 micron? or larger...
which will prevent the trichomes being stripped along with the plant and will clog your filter, eg it wont break off the trichs and pull through filter and leave in suspension... this is why i recommend the disposable reusable coffee filter... the ones i bought were 2$? at the grocery store!
one of the reasons i Really like my method is all the materials can be sourced Very quickly, very easily, and Very cheap
under 10$ you have all the supplies ive listed in tutorial
so personally i wouldnt use a 25 micron screen as my main filter, seems a little too fine to me... now a 250 micron screen, thats pretty much IDEAL
the idea behind it is the solvent pretty much falls through resistance free, its similar to what people what consider "quick wash" without ever actually submersing your material.
hope that clears it up for you!
happy to answer any other questions you might have!