I’m posting this because a few of you may have perspective on the issue and I would like to solve the problem as quickly as possible lol The following is from a conversation I’ve been having with daylight driller. I guess I should state this before I go further. I have a Buchner setup. Anyways here goes: I feel dumb as hell sending this message but I’m in a jam and really do need help. I got 200ml of tren/test/mast I need to filter. It’s 5% overdosed. 75mg each compound per ml. MCT oil. (This has held steady and is fine) I have a 2.5 can vac pump I used ptfe support screen gaskets to shim up the stainless steel support screen. I have tried both 0.22 and 0.1 millipore pvdf filters. (I got the .22 after the suggestion of DD because filtering through the 0.1 was hours for 10ml) I just tried to filter with the 0.22 and it literally would not filter warm oil. The oil just sat on top of the filter. It saturated but it would not filter through. I thought perhaps I had ruined the filter in the autoclave so I tried a fresh one that wasn’t autoclaved and yielded the same results. The vac pump was maxed out and started collapsing the hose. (Hose 5/16” ID x 7/16” OD - 50psi) If I lifted the filter off of the stainless steel support ever so slightly I would get vacuum. So the filter was acting like a stopper. Not even drops. Pvdf filters. Millipore gvwp 04700 - .22 Durapore vvlp04700 - .1 I’m at a dead end and do not know what to do? Clearly I am overlooking something.