8,255
edits
Changes
Jump to navigation
Jump to search
mLine 45:
Line 45: − − ===Preparing a well=== − The Guelph Permeameter requires a smooth sided cylindrical hole containing water to function. This is prepared using a soil auger set. − #Firstly the well is dug to the approximate depth using a digging auger with pointed cutting bits. − #*Digging will require some pressure, but should not require heavy pressure which may adversely affect the soil beneath. If a rock or other feature is encountered that requires significant effort, the hole should be abandoned and a new boring begun nearby. − #*The well should be at least 30 cm deep from the surface. It may be much deeper depending on the apparatus available. − #The well should then be finished to more of a cylindrical shape using a sizing auger, − #Just one or two passes of a brush may be used to reduce any ‘sealing’ or ‘smearing’ of the walls of the well. − #Move any loosened soil from the edges of the hole to ensure that they do not fall in during testing. − #Assemble the tripod over the hole.
→Preparing a well
The order in which the parts are assembled will be dictated by which connectors can fit through which holes within the connecting plates. It is easiest to connect up the thinnest tubes first.
The order in which the parts are assembled will be dictated by which connectors can fit through which holes within the connecting plates. It is easiest to connect up the thinnest tubes first.
Find a clear flat piece of ground (or a picnic table) and assemble all of the parts horizontally to reduce strain on the connectors.
Find a clear flat piece of ground (or a picnic table) and assemble all of the parts horizontally to reduce strain on the connectors.
===Filling the permeameter===
===Filling the permeameter===