Brine tank is a component used in water softening systems. Water softeners are used to soften hard water and are often used in homes to improve the quality of water. The brine tank is an important part of the water softener because it stores the salt solution required for the hardening process. The working principle of the brine tank is quite simple. During the hardening process of water, hardness-forming minerals (usually calcium and magnesium) experience ion exchange. During this ion exchange, hardness minerals are replaced by sodium ions. During this process, the water softener device uses brine solution in which hardness minerals are removed and sodium is introduced into the water. The brine tank is designed to store this salt solution and ensure the proper functioning of the water softener. Salt is usually placed in the tank in the form of pellets or blocks, and the water softener automatically extracts it when needed. This process requires regular maintenance to maintain the water softener's effectiveness because it needs to be refilled as the salt level in the brine tank drops. The brine tank is an important component of keeping water softener systems operating efficiently, providing the salt solution needed to soften hard water.