Keep Fluid Tank Level When Block Broken?

Hi guys, I am just wondering if its possible with mccreator to make fluid tanks that retain their fluid level when broken and picked up and placed again. My problem is the update tick of the tank resets to 0 when i place it down again. I'm not sure if nbt data is being stored for fluids as I tried to set the nbt tags to the convert block to item, and set those tags to the item, but it does not seem to work. any help is appreciated! thanks.