A few months ago, I had an inquiry from a homeowner indicating the need to replace a failing drainfield and being told by the local regulator that a replacement system using pressure distribution would probably be required. The homeowner noted the extra expense involved with adding a pump tank and a pump and wanted to know how the need for pressure distribution was determined.
If you have followed this column over the past few years, I hope you recognize that I am all for using gravity distribution over pressure when site conditions permit. Gravity is the simplest (not necessarily as simple
