Method for treating septic tank effluent

Abstract

A method for producing a foundation for a building is disclosed. The method comprises digging a trench having the shape and position required by the foundation for the building, pouring a hardenable concrete footer in the trench, assembling a slab jig on the footer, positioning the slab jig, if necessary, so that the upper surface of a concrete slab which subsequently fills the slab jig is substantially level, and filling the slab jig with a hardenable concrete. The slab is one having an open top, an open bottom, and sidewalls so shaped that the upper surface of a concrete slab which fills the slab jig is substantially flat and the slab has the shape required of the foundation for a particular building, In a preferred method, also disclosed, a course of cement blocks is laid on the footer, and the slab jig is assembled on the cement block course, positioned, if necessary, and filled.

1 . A method for producing a foundation for a building, said method comprising digging a trench having the shape and position required by the foundation for the building, pouring a hardenable concrete footer in the trench, assembling a slab jig on the footer, the slab jig having an open top, an open bottom, and sidewalls so shaped that the upper surface of a concrete slab which fills the slab jig is substantially flat and the slab has the shape required of the foundation for a particular building, positioning the slab jig, if necessary, so that the upper surface of a concrete slab which subsequently fills the slab jig is substantially level, and filling the slab jig with a hardenable concrete. 
   
   
       2 . A method as claimed in  claim 1  wherein a row of cement blocks is laid on top of the footer and the slab jig is placed on top of the row of cement blocks before the slab jig is filled with the hardenable concrete. 
   
   
       3 . A method for producing a foundation for a building fabricated from blocks, said method comprising digging a trench having the shape and position required by the foundation for the building, pouring a hardenable concrete footer in the trench, setting a cement block row on top of the hardenable concrete footer, assembling a slab jig on the cement block row, the slab jig having an open top, an open bottom, and sidewalls so shaped that the upper surface of a concrete slab which fills the slab jig is substantially flat and has the shape required of the foundation for a particular building, positioning the slab jig, if necessary, so that the upper surface of a concrete slab poured therein is substantially level, and filling the slab jig with a hardenable concrete. 
   
   
       4 . A method as claimed in  claim 3  which includes the additional steps of setting a first course of blocks of the building on the hardenable concrete with which the slab jig was filled and, while that concrete is still hardenable, forcing a metal bar into the hardenable concrete, the metal bar having a longitudinally extending central portion which is received in a slot in an end of one of the blocks of the building, an end which extends downwardly and laterally into the concrete, and an opposed end which is received in a slot in the top of the building block. 
   
   
       5 . A method as claimed in  claim 4  wherein a metal bar is embedded in the hardenable concrete with which the slab jib was filled, and that metal bar extends downwardly and is embedded in the footer.