Filter system including an activated carbon block for removing particles, organic contaminants, and microorganisms from a fluid

1. A system for filtering particulate matter having suspended particles, organic contaminants, and microorganisms from a fluid, comprising:

a first pre-filter assembly including a pleated sediment filter;

a second pre-filter assembly including a carbon block microfilter;

a third pre-filter assembly including an antimicrobial agent filter media; and

a main filter assembly having an activated carbon block disposed therein, the carbon block having distributed pores with a diameter of less than 1 micron and being operable to:

filter particulate matter having a diameter or a non-spherical width of at least 0.45 microns from the fluid; and

adsorb particulate matter having a diameter or a non-spherical width of at least 0.003 microns from the fluid; and

wherein the first pre-filter assembly is arranged to filter the fluid prior to the second pre-filter assembly, the second pre-filter assembly is arranged to filter the fluid prior to the third pre-filter assembly, and the third pre-filter assembly is arranged to filter the fluid prior to the main filter assembly.

2. The system of claim 1 , wherein the pleated sediment filter is operable to filter particulate matter having a diameter or a non-spherical width in a range of 5 to 20 microns from the fluid.

3. The system of claim 1 , wherein the carbon block microfilter includes distributed pores with a diameter of 5 microns or less, and wherein the carbon block microfilter is operable to filter particulate matter having a diameter or a non-spherical width in a range of 1 to 5 microns from the fluid.

4. The system of claim 1 , wherein the antimicrobial agent filter media is operable to kill or slow a growth of the microorganisms in the fluid.

5. The system of claim 4 , wherein the third pre-filter assembly is operable to filter particulate matter having a diameter or a non-spherical width in a range of 1 to 5 microns.

6. The system of claim 1 , wherein the arrangement of the first, second and third pre-filter assemblies and the main filter assembly is operable to allow the main filter assembly to filter a greater volume of fluid prior to reaching its end-of-life than any other arrangement of the first, second and third pre-filter assemblies and the main filter assembly.

7. The system of claim 1 , wherein the arrangement of the first, second and third pre-filter assemblies and the main filter assembly is operable to allow the main filter assembly to filter at least 20% greater volume of the fluid prior to reaching its end-of-life than any other arrangement of the first, second and third pre-filter assemblies and the main filter assembly.

8. The system of claim 1 , further comprising:

a filter screen disposed in an intake port and operable to filter the particulate matter having a diameter or a non-spherical width of at least 0.297 millimeters from the fluid.

9. The system of claim 1 , wherein the activated carbon block is a compressed, food-grade, activated coconut carbon block.

10. The system of claim 1 , further comprising:

a pump connected to the first pre-filter assembly.

11. The system of claim 10 , further comprising:

a pressure gauge arranged at an inlet port to the main filter and operable to:

monitor a flow of fluid to the main filter; and

actuate an indicator positioned on the pressure gauge when the pressure of fluid flowing to the main filter reaches a threshold value.