GymLift
New member
So I ran into a bit of a problem last night and I think the root cause is that the bottle top filter clogged.
Used the Nalgene® MF75™ Sterile Bottle-Top Filters (0.2µm, 500mL)
Attempted filtration of ~450-475mL of testosterone enanthate.
As usual, the first 100mL went quickly. Then it slowed. Then it virtually stopped.
Has a similar problem previous, and after consulting with pullinbig we figured it was because of the oil cooling down. So I poured the remaining oil into a beaker and put it in the microwave long enough to warm it up a good bit.
Unfortunately, that didn't do the trick. A little would come through at first maybe, but then it would super slow. I even warmed the oil up three different times ... probably got down to 175mL of oil. But then I started to have a hard time keeping the filtration pressure up. I would drop fairly quickly and I'm not sure why. I thought maybe I had ruined the vaccum, as I was using up to 20Hg of pressure and the plastic tube started to collapse a bit (damn).
I finally pulled out a new filter and all was fine.
I guess that in the future I'll either need to go with the .45µm filters (not even available in the new Pall Supor® machV type and the old type actualyl costs more) or I'll have to just expect that I might not get 500mL out of a 500mL filter.
Very possible that I could still get 500mL through using a different or more pure hormone.
PS The filter is pretty white before use and pretty dark after use. Do ya'all get that as well?
Used the Nalgene® MF75™ Sterile Bottle-Top Filters (0.2µm, 500mL)
Attempted filtration of ~450-475mL of testosterone enanthate.
As usual, the first 100mL went quickly. Then it slowed. Then it virtually stopped.
Has a similar problem previous, and after consulting with pullinbig we figured it was because of the oil cooling down. So I poured the remaining oil into a beaker and put it in the microwave long enough to warm it up a good bit.
Unfortunately, that didn't do the trick. A little would come through at first maybe, but then it would super slow. I even warmed the oil up three different times ... probably got down to 175mL of oil. But then I started to have a hard time keeping the filtration pressure up. I would drop fairly quickly and I'm not sure why. I thought maybe I had ruined the vaccum, as I was using up to 20Hg of pressure and the plastic tube started to collapse a bit (damn).
I finally pulled out a new filter and all was fine.
I guess that in the future I'll either need to go with the .45µm filters (not even available in the new Pall Supor® machV type and the old type actualyl costs more) or I'll have to just expect that I might not get 500mL out of a 500mL filter.
Very possible that I could still get 500mL through using a different or more pure hormone.
PS The filter is pretty white before use and pretty dark after use. Do ya'all get that as well?
Last edited:
