Heat up 1 cup of very hot water (not necessarily boiling, but pretty hot) in a Pyrex measuring cup.
Add the powdered ingredients, stir until dissolved, and transfer to your 2 liter bottle(or larger).
If using honey, then pour out your honey into the Pyrex cup.
Add honey to the 2 liter bottle, let it pour for 30 seconds, use 1 cup of hot water to rinse out the residual honey from the Pyrex measuring cup into the bottle. You should have a total of 2 cups of water in the bottle along with all of the ingredients sans the lemon juice.
Measure out the lemon juice in the mostly clean Pyrex cup and add to the bottle.
The concoction will foam up … don’t panic. Stir/shake to mix all of the ingredients. The foam will dissipate momentarily.
Add the remaining water (~6.2 cups) to top off the bottle and serve over ice.
You may want to stretch this recipe by adding Airborne tablets or equivalent and additional water.