I don't even IV but, in the event I did, I would want to micron filter. Thing is I don't understand how you can prepare just 1 shot (heroin to be precise) using a micron filter. I had considered shooting and acquired the following supplies(some purchased some from my work where I can get medical supplies): 10 .2 um micron filters, 10 1 cc insulin syringes w 31 g .5" tips(they are not luer locking), a couple 3 cc luer lock syringes w/ needle(21 g, obv useless aside for maybe drawing up solution), a couple 10 cc luer lock syringes w/o needle, a couple 1 cc oral syringes.
Now having this stuff I decided to experiement with how the micron filter works. so I planned to just run plain old water through it and see what happens. I initially took the 1 cc syringe and filled it up all the way. This seems like the simplest and easiest way to use the filter, just load the syringe with all the solution and then attach the filter to the end, push it through into a sterile spoon or whatever's clever, then draw it up in one of the 1 cc insulin syringes.
Thing is I noticed that hardly half the water made it through the syringe. I then read about how it is good to pre-wet the filter, so seeing as I basically just did that, I pushed another 1 cc through it, this time more came out, but still around ,3 cc short of the full 1. At this point I had acquired he 3 and 10 cc syringes, which unlike the 1 cc were luer lock types. The 1 cc fit in snugly, but didn't lock in like the other 2.
At this point I decided to try using the 3 cc syringe. suck up 1 cc of water and then also pull through 2 cc of air. I then locked it on the same micron (since it was already wet I figured) and pushed that through. Out came much closer to the 1 cc I pushed through this time. But still around .1 cc short of the full 1. This seems good and all, but some of the water that came out is bound to be what was already put in there. I have to think that I would be losing a good amount of product if I am just filtering a solution for a shot that is 1 cc or less.
The tutorial is at the beginning is great and all, but if I just want to do 1 shot it seems to leave me with a few questions. Can anyone give me an idea of how they manage to filter just a single shot through a micron?
Basically my question is this, when using a wheel filter to prepare just a single shot should I expect that I am going to lose a good % of the product (like15-20%) in the filter? Can someone give me a tried/true way to make it as economical as possible? I know its you lose something using cottons, seeing as people save them for later, but I wouldn't think it would be more than 10%. Also with microns it seems there is no way of cracking those things open and getting what is lost inside, I tried to crack 1 open and its like an impenetrable safe.
Also when pre-wetting a filter what would be the ideal amount of water to use? Like is it alright to push 3 cc's through prior to filtering your solution? Or will that decrease the effectiveness of the filter. Is there a certain volume of solution that a micron filter is tested for? For instance, after pushing say 20 cc through it does it not guarantee the listed filtration levels?