Abstract: Provided herein are improved brine tanks comprising a brine tank lid with two parts for customizable identification, and a brine tank body with one or more indentations for easier removal of the brine tank lid.

Abstract: A water filtration system includes a housing with a valve having an inlet and an outlet. A filter media bed within the housing includes four filter media including silver impregnated activated carbon; coconut carbon or copper zinc; calcium carbonate, magnesium oxide, garnet and silica sand; and gravel. The filter media bed is configured to provide a desired flow rate, e.g., of 10 g/m @ 15 psi. The filter media bed may include 3-9% of the first filter medium, 40-60% of the second filter medium, 12-23% of the third filter medium and 20-30% of the fourth filter medium or less. Additionally, the valve may include a drain line port through which the less dense filter media can be flushed from the housing and new filter media provided into the housing without the need to physically uninstall or replace the system.