One major component of onsite system management is providing the ability to assess whether the soil treatment area or drainfield is accepting the effluent delivered. Many regulatory management programs require inspection ports in drainfield trenches or beds.From a system management standpoint, this allows a quick way to see whether effluent is ponded in the system and what proportion of the system is being used. A number of years back, I remember recommending inspection ports in trenches. Some of the first installations resulted in what I would term “unsecured” inspection ports. They were easily extracted from the trench the first time the
