Buck, as the capacity to symbolize the female genital organs with all the associated interpretations.
Pour the water into the tank means to have sex.
Clean water in the tank means a harmonious relationship with your sexual partner.
Dirty water in the tank symbolizes genital diseases.
If you pour the dirty water into the tank, then you are not satisfied with their family life or a sexual partner, and if the tank has been well polished, then you just secretly hate your partner.
Attempts to fill the fluid tank full of holes talk about your failures in the sexual sphere.
If someone cleans the tank, he is preparing for family life.