Shigella sonnei (the most common species in the U.S.) Shigella flexneri; Shigella boydii; Shigella dysenteriae; The transmission of most Shigella infections is caused by the bacterium passing from stools or soiled fingers of one person to
System maintenance. One advantage of the septic tank/absorption field system is that it has no moving parts, but it does require maintenance. Annual inspections of your septic system are recommended to ensure that it is working properly and to determine when scum and sludge in the septic tank should be cleaned out.
vent lines. Please check your local codes to see if this material is code approved. In most major metropolitan areas it is not a code approved material. Absorbent â A material that is used to hold gases, liquids or solids or suspended solids on itâs surface or inside pores. The most common absorbent used in the plumbing world is activated carbon. Absorption Field â This is a seeping field designed to disperse the liquid waste from a septic tank through a filter bed.