Adding protein into foods & drinks

I just got some unflavored Unjury Protein powder to add in my foods and drinks but I am unsure about the amount to put in my Crystal Light.  I make it by the gallon so how much of the Unjury should I put in??? One, two, three scoops???  I've looked on their website and it just said add it to your Crystal Light but no amounts....  

I would say add one scoop the first time...  If it tastes good and mixes well.  Add another scoop next time...  and so on.  Everyone's tastes are different so just experiment.  I make it by the 2 QT container.  I just made one this morning.  I will try it too.

I add 1 scoop to a 20 oz. bottle of water. So try doing the numbers from there. 20 gr of protein in 1 scoop. I like it in fruit punch, orange sunrise, cherry pomegrante the best. This is all i have tried it in so far.

Thank you so much for the info ladies.....
Marilyn, can you tell a difference in the taste with a full scoop in a 20oz bottle?? How about the slightest difference .... LOL