Comparison of the Falling Head Permeameter to the Pask Permeameter

                The ETC Simplified Falling Head Permeameter Kit is based on the device and methodology outlined in the Nova Scotia Onsite Technical Guidelines. ETC has prepared a user-friendly kit and guide which can be used in the field, or in the lab. The ETC Pask Permeameter is constant head well permeameter designed and […]
Perc Test

New Expression Relating Kfs to Percolation Time

The Percolation Test (PT) rate of fall or “Perc Time” is still used in many jurisdictions to determine suitability for onsite sewage disposal or for sizing of soil absorption systems (drainfields) and stormwater infiltration BMPs. It has been understood for some time, however, that PT is less than ideal because it is not just a function of […]