I would add more potatoes. or chuck it.
None if you don't like it.
Pickle juice will not clean your system. Only time can get THC out of your system.
Acid
Yes, it stops it for a day or two depending on how much pickle you eat and then returns.
To start with, you should never be putting mustard or vinegar in potato salad!! Yuck!!
Approximately 4.5 quarts in 5 pounds of potato salad, including hard-cooked eggs.
I would make 25 pounds of it.
That is 87.5 pounds
Unless you have a recipe which substitutes the mayonnaise with something much healthier, then no...
That depends on the recipe you use.
13 hrs
Depends what else you put into it. I would make about 130 pounds of salad from 100 pounds potato as I add eggs, onion, bell peppers etc.