A. Fuel tank - Contains fuel to operate burner.
E. BURNER - Spreads out the flame under cooking pots or
B. PREHEATER - Heats generator, which will then
change fuel to gas vapor.
C. PREHEATER SHIELD - Helps generator heat up
F. SPARE GENERATOR - Replacement for defective
G. AIR SHUTTER - Adjusts air input to burner.
D. GENERATOR - Filters and converts liquid fuel into
H. FUEL FILLER - Provides an opening to place fuel in the
Figure 2-10.Location and description of burner major components.
These facilities include cesspools, septic tanks, tile
fields, and field-type latrines. Information on each of
these facilities is provided below.
Leaching cesspools are usually dry-laid masonry
or brick-lined wells without masonry at the bottom; the
sewage flows into them and leaches out into the soil.
Floating solids collect at the top and settling solids
collect at the bottom of the well. The leaching capacity
of the well is exhausted when the solids accumulate and
clog the soil (fig. 2-12). The use of chemicals is not
recommended for increasing the useful life of a
When the first cesspool becomes filled, a second
well may be constructed to take the overflow from the
first. In such cases, the first cesspool should operate as a
septic tank to collect the settling and floating solids and
provide a trapped outlet on the connection leading to
the next leaching cesspool. Septic tanks can be placed
advantageously ahead of leaching cesspools in larger
installations. Leaching cesspools should not be placed
closer together than 20 feet by out-to-out measurement
of the walls.
Leaching cesspools should be used only where the
subsoil is porous to a depth of at least 8 or 10 feet and
where the groundwater is below this elevation. When
cesspools are located in fine sand, the leaching area can
be increased by surrounding the walls with graded
The number and the size of cesspools required
depend on the quantity of sewage and the leaching
characteristics of the total exterior percolating area
above the groundwater table, including bottoms and
sidewalls below the maximum-flow lines. The
allowable rate of sewage application per square foot per