Fluid Check for a recipe

How and where can I check the amount of fluid in the table for the custom crafting table and recipe? Certain crafting items can only be crafted with 1000 ml of fluid, which can be successfully pumped even if the tank is empty. This is exactly the problem. In the first picture, I try to check it in vain, it doesn't work, it's on the GuiOpen tick. The second picture just sucks it out, it's too late to check it here. In the third picture, everything is in return logic, I can't check it either. Anyone have any ideas?