"Quisek" is not a recognized unit of measurement for water or any other substance. It's likely a misspelling or an unfamiliar term.

To help you further, please clarify:

* What is the full context of where you encountered this term? Was it in a recipe, scientific paper, or something else?

* Is there any other information you can provide? Perhaps a description of what the term is supposed to represent?

Once I have more information, I can hopefully provide a more accurate answer.