1. If a pump tank has the following dimensions — 42 inches by 60 inches by 58 inches deep — what are the gallons per inch? What is the volume of the tank?
2. If an off float is set 52 inches from a surface reference point and the on float is activated at a depth of 46 inches, what is the dose volume?
3. From the reference point, where should the high-water alarm float be set?
4. If there is 6 inches of sludge in the tank, what does this tell us?
5. If we factor in an 18-inch depth to cover the pump, is the tank still large enough?
Here’s a review of Simple Septic Math and our Pointers for Onsite Arithmetic.
