This presentation will discuss aspects and methods for troubleshooting tanks of various materials. It will also discuss troubleshooting the performance of tanks, such as: system backing up into the home, then there could be clogging due to various factors: roots, poor slope on inlet piping, bends, or possibly the pipe has settled, field inspection methods will be discussed to check these possibilities. Other issues to review: Proper pumping intervals, sludge and scum depths, surface drainage, tank siting/location, backfill settlement, tank settlement. Observations of a proper and improper functioning tank: odors, scum buildup, or conversely lack of a proper scum layer, dead tanks, and wastewater color (strength observation).  

The instructors for this class are Dennis Hallahan with Infiltrator and Claude Goguen with the National Precast Concrete Association.