Septic tank waste water filter including a reservoir for filtered waste water

In combination a septic tank and a waste water filter for use in the septic tank, the waste water filter comprising:

• a shield comprising a vertical peripheral wall substantially impervious to the passage of unfiltered waste water;
• the shield further having a top and a bottom;
• the shield bottom including an opening for the entry of unfiltered waste water into the interior of the shield;
• a filter element disposed substantially within the shield interior;
• the filter element including a filter surface having filtering openings for restricting the passage of waste water solids of a size larger than the filtering openings;
• while allowing the passage relatively clear water;
• the filter element further separating a first unfiltered zone within the interior of the shield from a second filtered zone within the shield interior;
• a reservoir including at least a first vertical peripheral wall defining a chamber within which filtered waste water may be temporarily maintained;
• the reservoir in fluid communication with the second zone;
• and, wherein the reservoir is disposed at least partially within the interior of the shield;
• and, means to secure the reservoir to the shield, wherein the first vertical peripheral wall of the reservoir extends through the bottom of the shield;
• and
• means to secure the filter element within the shield;
• wherein the filter element may be removed from the shield without the separation of the reservoir from the shield.