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The Health Bulletin i:l surface soil and decrease rapidly in number at succeeding depths, remote from the penetration of air and phint roots, disappearing entirely at from three to four feet below the ground surface. The purification effected, .therefore, is in direct proportion to the quantity of nitrifying bacteria encountered. For this XAHD DAGE f'^Z" 5TI21P5 HAILEP FLAT OH 0UT5IDE OF InnERroM-TocASTQcoovts rocDAfrLt PoACP''AnD''WEiG POADP' Detail orFoDfiroB J-fM-fl^M^lArrLE. AnPCOVEEiLAB- Fig. 3 FORMS IN PLACE. Bottom and sidewalls of concrete, septic tank poured. Also showing torm in upper left-hand corner to be used for molding slabs. DIRECTIONS FOR CONSTRUCTION OF TANK: In Fig. 2 is shown a septic tank de-signed for home construction. The tank is simply a rectangular concrete box provided with bameboard, weir and overflow, constructed in a pi: dug to the proper dimensions. lo build this tank, first dig a hole 5' 6" long. 4' 0" wide and 4' deep, if the top of the tank IS to be flush with ground surface. Then mix and pour a 4" layer of concrete in bottom of hole for the floor. After this concrete has become set. roughen a 4" strip all the way around the edge, to give bond between floor and sidewalls. Place forms and pour sidewalls, as shown in l^ig. 3. Cleats A. Fig. 3, are nailed to sides of forms, 16" from outlet end. to make poves in walls for placing of baffles, as shown in Fig. 2. Cleats B are nailed to the sides of forms 12" from the outlet end to make grooves for placing weir. Concrete should be mixed in proportions of one part of cement to four parts of sand and gravel. To form cover slabs, baffle and weir, make a frame of 1%" x 3^" planks laid flat side on a floor or other smooth level surface adjusted to the following dimensions: Weir 3' x 1" x 2' 6"; baffle 3' 1" x 1' 8" cover slab. 2 sections each, 3' 8" x 2' 6". Each slab should be reinforced by small iron rods or woven wire. When slabs have hardened sufTi^iently to hindle, remove inn. r forms from the tank and place the weir and baffle slabs in thf^ir respective grooves, as shown in Fig. 2. Waterproof the tank by applying to the entire inside surface a soupy mixture of cement and water, with a large paint brush. When inlet and outlet pipes have been properly connected up place cover slabs. The tank is then ready to be placed in operation.
Object Description
Rating | |
Fixed Title * | NCHH-04: The Health Bulletin [1914-1973] |
Document Title | The Health Bulletin [1914-1973] |
Subject Topical | Public health -- North Carolina -- Periodicals. |
Subject Topical Other | Public Health -- North Carolina -- Periodicals. |
Contributor | North Carolina. State Board of Health. |
Publisher | Raleigh, North Carolina State Board of Health. |
Repository | University of North Carolina at Chapel Hill. Health Sciences Library. |
Host | University of North Carolina at Chapel Hill |
Date | 1920 |
Identifier | NCHH-04-035 |
Form General | Periodicals |
Language | English |
Rights | This item is part of the North Carolina History of Health Digital Collection. Some materials in the Collection are protected by U.S. copyright law. This item is presented by the Health Sciences Library of the University of North Carolina at Chapel Hill for research and educational purposes. It may not be republished or distributed without permission of the Health Sciences Library. |
Digital Collection | North Carolina History of Health Digital Collection |
Sponsor | The North Carolina History of Health Digital Collection is an open access publishing initiative of the Health Sciences Library of the University of North Carolina at Chapel Hill. Financial support for the initiative was provided in part by a multi-year NC ECHO (Exploring Cultural Heritage Online) digitization grant, awarded by the State Library of North Carolina, and funded through the Library Services and Technology Act (LSTA). |
Volume Number | 35 |
Health Discipline | Public Health |
Digital Format | JPEG 2000 |
Print / Download PDF Version | http://archives.hsl.unc.edu/nchh/nchh-04/nchh-04-035.pdf |
Document Sort | all; group-b; nchh-04 |
Volume Link | http://dc.lib.unc.edu/cdm/search/collection/nchh/field/identi/searchterm/NCHH-04-035 |
Title Link | http://dc.lib.unc.edu/cdm/search/collection/nchh/field/documa/searchterm/NCHH-04 |
Catalog Record link | http://search.lib.unc.edu/search?R=UNCb1296443 |
Revision History | done |
Description
Fixed Title * | Page 13 (image) |
Document Title | The Health Bulletin [1914-1973] |
Subject Topical | Public health -- North Carolina -- Periodicals. |
Subject Topical Other | Public Health -- North Carolina -- Periodicals. |
Contributor | North Carolina. State Board of Health. |
Publisher | Raleigh, North Carolina State Board of Health. |
Repository | University of North Carolina at Chapel Hill. Health Sciences Library. |
Host | University of North Carolina at Chapel Hill |
Date | 1920 |
Identifier | NCHH-04-035-0075 |
Form General | Periodicals |
Page Type | all; all images; diagram; editorial |
Language | English |
Rights | This item is part of the North Carolina History of Health Digital Collection. Some materials in the Collection are protected by U.S. copyright law. This item is presented by the Health Sciences Library of the University of North Carolina at Chapel Hill for research and educational purposes. It may not be republished or distributed without permission of the Health Sciences Library. |
Filename | healthbulletinse35nort_0075.jp2 |
Digital Collection | North Carolina History of Health Digital Collection |
Sponsor | The North Carolina History of Health Digital Collection is an open access publishing initiative of the Health Sciences Library of the University of North Carolina at Chapel Hill. Financial support for the initiative was provided in part by a multi-year NC ECHO (Exploring Cultural Heritage Online) digitization grant, awarded by the State Library of North Carolina, and funded through the Library Services and Technology Act (LSTA). |
Volume Number | 35 |
Issue Number | 3 |
Page Number | 13 |
Health Discipline | Public Health |
Full Text | The Health Bulletin i:l surface soil and decrease rapidly in number at succeeding depths, remote from the penetration of air and phint roots, disappearing entirely at from three to four feet below the ground surface. The purification effected, .therefore, is in direct proportion to the quantity of nitrifying bacteria encountered. For this XAHD DAGE f'^Z" 5TI21P5 HAILEP FLAT OH 0UT5IDE OF InnERroM-TocASTQcoovts rocDAfrLt PoACP''AnD''WEiG POADP' Detail orFoDfiroB J-fM-fl^M^lArrLE. AnPCOVEEiLAB- Fig. 3 FORMS IN PLACE. Bottom and sidewalls of concrete, septic tank poured. Also showing torm in upper left-hand corner to be used for molding slabs. DIRECTIONS FOR CONSTRUCTION OF TANK: In Fig. 2 is shown a septic tank de-signed for home construction. The tank is simply a rectangular concrete box provided with bameboard, weir and overflow, constructed in a pi: dug to the proper dimensions. lo build this tank, first dig a hole 5' 6" long. 4' 0" wide and 4' deep, if the top of the tank IS to be flush with ground surface. Then mix and pour a 4" layer of concrete in bottom of hole for the floor. After this concrete has become set. roughen a 4" strip all the way around the edge, to give bond between floor and sidewalls. Place forms and pour sidewalls, as shown in l^ig. 3. Cleats A. Fig. 3, are nailed to sides of forms, 16" from outlet end. to make poves in walls for placing of baffles, as shown in Fig. 2. Cleats B are nailed to the sides of forms 12" from the outlet end to make grooves for placing weir. Concrete should be mixed in proportions of one part of cement to four parts of sand and gravel. To form cover slabs, baffle and weir, make a frame of 1%" x 3^" planks laid flat side on a floor or other smooth level surface adjusted to the following dimensions: Weir 3' x 1" x 2' 6"; baffle 3' 1" x 1' 8" cover slab. 2 sections each, 3' 8" x 2' 6". Each slab should be reinforced by small iron rods or woven wire. When slabs have hardened sufTi^iently to hindle, remove inn. r forms from the tank and place the weir and baffle slabs in thf^ir respective grooves, as shown in Fig. 2. Waterproof the tank by applying to the entire inside surface a soupy mixture of cement and water, with a large paint brush. When inlet and outlet pipes have been properly connected up place cover slabs. The tank is then ready to be placed in operation. |
Digital Format | JPEG 2000 |
Print / Download PDF Version | http://archives.hsl.unc.edu/nchh/nchh-04/nchh-04-035.pdf |
Document Sort | all; group-b; nchh-04 |
Volume Link | http://dc.lib.unc.edu/cdm/search/collection/nchh/field/identi/searchterm/NCHH-04-035 |
Title Link | http://dc.lib.unc.edu/cdm/search/collection/nchh/field/documa/searchterm/NCHH-04 |
Catalog Record link | http://search.lib.unc.edu/search?R=UNCb1296443 |
Revision History | done |
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