Drinking your urine in an emergency situation

[DrDeth]

@Sigene

This was another question I had a few years ago here, but never got a good answer. How much can you dilute out seawater (or ‘stretch out’ your fresh water supply) to maximize survival time?

Oddly we had a thread about this in 2007.

Surviving by drinking diluted sea water

This post in this thread gives you the amount of salt in a liter of seawater. The number is 35 grams/liter. Qadgop has given the amount of salt required per day. If your drinking water is distilled water and your emergency rations give you 480 mg then you can take in an additional 20 mg assuming no other salt intake (don’t let the sweat of your brow run down into your mouth). In that case a liter of seawater would have to be used over a period of 1750 days or 4 years, 9 mo. and 16 days. So…

A qoogle search came up with answers between 1 in 4 (assuming the fresh is distilled , which is fairly common on a life raft), and 1-5 and 2889g of distilled water to each 1000g of seawater .

So, to be safe 1-5.