To begin plasmapheresis, whole blood will be taken from your arm. The whole blood is then drawn by the automated machine into a centrifuge that spins, causing the plasma to separate from the red blood cells.
As long as 30 days. It will last longer in glass containers and in the refrigerator or a dark place but can be stored in plastic bottles because the alkaline water will not leach like R.O. or distilled water.
So we started drinking alkaline ionized water and my acid reflux disappeared in a few days and has never returned. I should make note of the fact that when my sons and I were away for 8 days golfing without the alkaline ionized water, that my old acid reflux started to rear its ugly head near the end of the trip.