b'LT ENGINEERINGCATALOG DESIGN CONSIDERATIONS SIZINGCapacity is one of the most important considerations Since this is a special product that requires coordination in septic tank design. Allowing for ample tank capacity and careful review of different variables involved, it results is important from a functional standpoint as well as goodcomplex to establish a standard chart with model and size. economy. Consult local codes and requirements for septicParkUSA offers assistance with the complete design and tank sizing. specifications for this product.Septic tanks have a minimum of two compartments. MAINTENANCETwo compartment tanks of the proper proportions provide better total suspended solids (TSS) removal than tanksThe anaerobic system unit should be inspected periodically with one compartment or tanks with more than twofor any accumulation that could occur during normal compartments. This is especially valuable for the protectionoperation. In the unfortunate event of spill, the unit should of disposal fields or beds. immediately be serviced to remove hazardous material. The inlet compartment of any septic tank must be not lessWhen necessary, the unit should be pumped out bythan two thirds of the total capacity of the tank, nor less thana licensed pumping company familiar with regulationsWastewater Systems500 gallons liquid capacity. The tank must be at least 3 feetregarding proper disposal.wide and 5 feet long. Liquid depth must be not less than2.5 feet.The second compartment must have a minimum 250-gallon capacity or a maximum of one third of the total capacity of the tank. Adequate access must be provided to each compartment for easy accessibility, inspection, cleaning,and removal of intercepted waste products. There should be an adequate number of manholes to permit access for cleaning all areas of the interceptor. A manhole shouldbe located near the inlet and the outlet. The manholeshould not be less than 20 inches in the least dimension.All manholes should extend to grade.The septic tank should be buried so as to intercept the building sewer. Inlet and outlet piping shall be a minimum of 4 inches or the size of the building sewer, whicheveris greater.INFO@PARKUSA.COM|888-611-7275|WWW.PARKUSA.COM 445'