Deep Sand makes gravity a breeze!
A gravity septic system is not always possible, but in this case we found nice deep sand. It was this deep sand that allowed this homeowner to install a replacement gravity septic system as part of their remodel of the house. This septic system had not yet failed, but was installed in the early 1970’s and was of questionable condition so the homeowner wanted to make sure that the septic system would be trouble free.
Gravity septic systems are the simplest, most desirable, cost effective to operate and least expensive (generally) to install of all the options available. In addition to that, it is the simplest to maintain.
The two main considerations when designing a gravity septic system are soil depth and soil type, or texture. In this case we had excessively deep soils, more than 6 feet to a restrictive layer (anything that impedes sewage from moving further into the ground.) With these deep soils the installer could install the gravity drainfield deeper to avoid having to bring in additional cover material and increase installation costs. The other consideration, soil type or texture, dictates the size of the drainfield. In this case the soil was classified as a “type 3” or “medium sand.” The larger the sand particle is, the smaller the drainfield can be.
All in all, Doug Hemley Septic Installations did an excellent job on this install and this gravity septic system will give the new homeowners many decades of trouble free use.
