Part 9

Locate the septic tank where it can be placed entirely with the side walls underground and out of danger of flood waters. For a family of 8 to 10, plan a tank with 8-inch walls, 5 feet wide, 5 feet deep and 10 feet long—all dimensions in the clear. Lay out the tank and construct it in exactly the same manner as UNDERGROUND CISTERNS, page 68.

Before filling the forms, set in the 6-inch inlet and outlet drains at the same height, 2 feet 6 inches below the ground level. To aid further in breaking up the currents and keeping out too much air, use elbow bends, so that the sewage in the tank will cover the mouths of the tile. In the side forms, at a distance of 2 and 4 feet from the inlet wall, set ¾-inch bolts to which the baffle boards will later be attached. These boards reach entirely across the tank, project above the sewage, and extend to within 1 foot of the bottom. While building the manhole covers, for the needed ventilation, insert in them four short lengths of 1-inch gas pipe.

Remove the forms the same as for underground cisterns.

Window Hatches

Window hatches should be protected by a flap cover, to close in times of heavy rain or snow.

An Outdoor Swimming Pool

These are built exactly as an underground cistern. A pool near home affords a safe “swimming hole” for the children.

=_How will you know?_=

You are going to build—now or some time—and you want to build well and economically.

You will choose between temporary and permanent construction.

_Why you should build in concrete._

First, because of _permanence_. It is fireproof, strong, and lasting—proof against wear-and-tear and depreciation. It lasts and lasts—against wind, water, and fire.

Second, because of _cleanliness and sanitation_. This means healthy stock and better products, which sell at higher prices.

Third, because of _economy_. Concrete is lower in ultimate cost because, once built, it requires no painting or up-keep, no repairs, no attention. Being proof against fire, concrete secures the lowest insurance rates.

“_The Standard by which all other makes are measured._”

_Why you should use ATLAS._

First, because Atlas Portland Cement is the most-used cement—high in quality and always uniform and reliable.

Second, because Atlas Portland Cement has demonstrated its worth. Our own government selected it for the Panama Canal, after careful investigation and tests. Nearly seven million barrels have been used so far for this project. Severe government tests have been made of every hundred barrels, but not a single barrel has been rejected.

“_The Standard by which all other makes are measured._”

_Free help for you._

This book will give much valuable information about concrete. But naturally, your particular needs may require further information.

Let us furnish this information you need. Tell us what you want to build and what you would like to know. We will gladly give you all the necessary help.

So far, we have sent information to over two million farmers. Why shouldn’t you avail yourself of this help, which is offered to you without any obligation?

Whenever you buy cement, look for the Atlas trade mark as your guide—the black trade mark with yellow letters.

=_The Atlas Portland Cement Company_=

_New York Chicago Philadelphia Boston_ _St. Louis Minneapolis Des Moines_

“_The Standard by which all other makes are measured._”

=_Warning_=

There are many brands of Portland cement, and some people are confused, and as a result accept any cement bearing the word “Portland.”

The word “Portland” signifies _only_ the kind of cement, _but does not designate the brand and quality_.

Specify “ATLAS” Portland Cement when you buy, and you will get the best.

=Atlas Portland Cement=

is always uniform in strength, color and quality. It is the cement that has done most to make concrete and its uses so satisfactory and well known. That is why Atlas is “The Standard by which all other makes are measured.”

“_The Standard by which all other makes are measured._”

=Ask Your Dealer for ATLAS=

“_The Standard by which all_ _other makes are measured_”

“_The Standard By Which All_ _Other Makes Are Measured._”

=ATLAS= used exclusively by the United States Government on the Panama Canal

=ATLAS= used exclusively on the great Keokuk Dam across the Mississippi River