Hi
If they are the same does that mean i must drink say 1 litre of the salt water, isn't that a bit much?

you can also go to google and in the field where you would type search items just type in something like " ounces in a liter " or ounces in a quart and hit enter and it will do the conversion for you. You can also type in math equations also or type in a phone number with area code and if its listed it will give you all the info including a map to that address.