Quote Originally Posted by Oldskool View Post
Im actually having trouble finding the right vacuum filter set up as well.

All the ones I keep finding advertised on Amazon or even on the autofil website mostly have pes filters dick don't work for gear filtration.

From the chart I saw about chemical compatibility the only filters that are compatible/ rated for both ba and BB is nylon or pvdf.

If u make any headway on this I'd love to know what worked for u and where u were able to find it.

Good luck

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I have yet to find a bottle-top filter that is totally compatible with the chemicals we use (the membranes/filters are fine in some instances, however, the plastic reservoir/funnel is the concern since these plastics are not compatible with BA and/or BB. It is my opinion, based on all of the research I’ve done, and even contacting bottle-top manufacturers, the bottle-top filters are not the way to go since these plastics will not withstand the solvents/esters. Ultimately, you’ll have small amounts of plastic in your gear.

Sure, some guys may say that since we only filter a small amount of gear through these filters that there will not be enough time for any chemical reactions/degradation of the funnel-reservoir to take place... well, I don’t want to take a chance of injecting plastic into my body, even though it may be a “small” amount of plastic.

That’s why I decided to use a 47mm 300ml glass funnel set-up (non-fritted) that uses a stainless steel mesh support screen. Oldskool I’ll get you a link to the one I use. The ones you see on amazon and eBay are not ideal, in my opinion, due to the type of funnel going into the filtering flask (most are “fritted”). Also, I remember RMEwrench stating that, if he remembered correctly, a nylon bottle-top melted on him during a filtering session. I also remember seeing a chemcial comparability chart where nylon wasn’t ideal so I eliminated it from my lineup of filters/membranes.