I can confirm that this site is legit, the blood bags are made by Terumo: 600ml with good length hose and 16g needle, and they work very well. I've bought Bac water from them before too fwiw.
I just did my first self phlebotomy and it took 5 min and change to fill up the bag, faster than a donation I assume because I was seated up and my heart was probably beating faster due to the circumstances. Reason for this draw was because I had a blood test done and my Hemo/etc was too high, my Iron was ok, but I'm still weeks out from when I can donate next so thought I'd give it a go and I feel much better now, and I'll reschedule my donation to a later date.
If you've donated blood you've seen it done so you know what to do, but here are some first hand tips for doing it yourself:
- Tie off your arm to get the vein presenting in such a way that you can pull the tab to untie it. There are youtube videos that show how to tie if needed, and flat resistance rubber bands work very well.
- Be seated on a low stool to get you in a good higher position than a chair relative to a bathroom counter.
- Put a dark color towel down under your arm, or one you don't plan on keeping, because you will likely bleed a bit inserting the needle as you can't do it as fast as a nurse can. Its a big pin so give it a good push to break the skin, then the blood may start to pour out and that means you're on the right vein, push it in farther and the hose will fill and you won't bleed externally any more
- Put a thin rubber band around your calf and feed the hose through and place the blood bag down next to your foot. This will keep it in a low position that allows gravity to draw your blood, and you can use your foot to rock the bag back and forth a bit like the machine at a blood donation clinic.
- Have a piece of tape handy to put across the hose on your arm to hold it in place, then you can untie the rubber band around your upper arm with your teeth or your free hand.
- When the bag is full and you're done just put a fresh piece of gauze that you should already have handy over the needle and pull it out, and apply another fresh piece of gauze to the pin spot and wrap it up.
- Proceed to cleaning up the crime scene that you may have just made.
As for the blood, cut the bag and drain it. Seems wasteful but what can you do