Water filter system and method

A water filter including:

• (a) a pre-filter including:
• (i) a housing body, the housing body including:
• an inner side wall;
• an outer side wall;
• a housing body lower end that couples a lower end of the inner side wall to a lower end of the outer side wall, wherein the inner side wall, outer side wall, and housing body lower end define at least a part of an annular space;
• and a cover over an upper end of the inner side wall, the cover including an exit port therethrough in fluid communication with the annular space;
• (ii) a cup-shaped filter, wherein the wall of the cup-shaped filter is disposed within the annular space, the closed-end of the cup-shaped filter extends across the cover, and the open-end of the cup shaped filter is adjacent to the housing body lower end;
• and
• (iii) a cap disposed across the closed-end of the cup-shaped filter at the upper end of the outer side wall, the cap including an entry port therethrough that is in fluid communication with the annular space, wherein the filter separates the annular space into a first side for unfiltered water and a second side for filtered water;
• (b) a backflushing adaptor at least partially disposed within a cavity formed at least in part by the housing body inner side wall, the backflushing adaptor including an elongated tubular extension and an adaptor cover, wherein the elongated tubular extension includes female threads on a first end and on a second end, and wherein the adaptor cover includes a fluid pathway therethrough having a first end with male threads that releasably engage with the female threads on the second end of the elongated tubular extension;
• wherein the female threads of the first end of the elongated tubular extension releasably engage with male threads at the exit port;
• wherein the fluid pathway through the adaptor cover has a second end with male threads;
• and
• (c) an inline filter with female threads removably coupled to male threads of the second end of the fluid pathway through the adaptor cover,
• wherein a continuous fluid pathway is formed from the entry port through the cup-shaped filter, through the exit port, through the backflushing adaptor, to the inline filter;
• and
• wherein the pre-filter may be backflushed by removing the adaptor cover from the second end of the elongated tubular extension and connecting a water hose to the second end of the elongated tubular extension.