Above totals are for a per drink mix with 1 cup of water. (multiply by 20 when making a "batch" - easier to measure out and combine).

Electrolytes are sodium (Na+), potassium (K+), calcium (Ca 2+), magnesium, (Mg 2+), chloride (Cl-), phosphate (PO4 2-), bicarbonate (HCO3-), and sulfate (SO4 2-). Sodium, potassium, magnesium and calcium are the four major electrolytes that maintain the body’s fluid balance. http://runnersconnect.net/running-nutrition-articles/electrolytes-for-runners/

Now that we know "where to get" the electrolytes establish a powder with the following. Ignore the daily recommendation for Soylent, focus instead on the per drink needs of the following:

Sodium: 100mg Potassium: 400mg Calcium: 20% of daily Magnesium: 40%

For flavour try powdered vitamin C or a squirt of lemon juice Adds sweetness, tartness and vitamin C! Awesome! Stevia drops or powder also a great option.

First trial and it tastes pallatable. Haven't tried the vitamin C yet but lemon juice is nice. Blend with water well to integrate the tartar etc. Little gritty - my magic bullet does a good job but not perfect. Blending with water is helpful. Maybe try baking powder instead of creme tar tar? - investigate their potassium values first.

http://nutritiondata.self.com/ http://nutritiondata.self.com/foods-baking%20powder000000000000000000000.html

Roughly based on the The Vega Sport Electrolyte Blend contains sodium, potassium, magnesium, calcium, and chloride. Consider vitamin C and selenium. http://vegasport.com/product/electrolyte-hydrator/ http://vegasport.com/product/electrolyte-hydrator/

Other sources for ideas

A. 8 cups of water 1 teaspoon of salt 1 teaspoon of baking soda ½ teaspoon of salt substitute (potassium salt) 1 pack of sugar free drink flavoring Artificial sweetener to taste http://readynutrition.com/resources/diy-electrolyte-powders_21062011/

B. Per liter of water: 1/2 teaspoon sea salt 1/4 teaspoon potassium citrate 1/4 teaspoon magnesium citrate http://forums.phoenixrising.me/index.php?threads/making-your-own-electrolyte-mix.19594/

C. Measure all ingredients precisely. Small variations can make the drink less effective or even harmful. Mix the following: 1 quart water ½ teaspoon table salt 6 teaspoons sugar http://www.webmd.com/hw-popup/rehydration-drinks?navbar=hw86827

D. Electrolyte Blend The Vega Sport Electrolyte Blend contains sodium, potassium, magnesium, calcium, and chloride, as well as antioxidants vitamin C and selenium to proactively replenish and replace what is lost in sweat. http://vegasport.com/product/electrolyte-hydrator/ 1 cup per packett