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1950-51 Theatre Catalog, 9th Edition, Page 193 (173)

1950-51 Theatre Catalog, 9th Edition
1950-51 Theatre Catalog
1950-51 Theatre Catalog, 9th Edition, Page 193
Page 193

1950-51 Theatre Catalog, 9th Edition, Page 193

diameter vitrified clay or cement pipe, provided a reasonably coarse foundation is encountered at the 3' depth. This tile is filled with coarse gravel or crushed stone, thus providing sufficient voids to receive a quantity of water before overfiowing, and permitting the water to leach out of the bottom into the soil.

The large dry wells are similar in size and construction to seepage pits. In many instances, however, the pits are not curbed but are entirely filled with very coarse gravel or broken stone. Where it is not practicable to use one pit for all downspouts, individual pits may be provided for each downspout. The pits should be of ample size for the amount of water they may receive at any single period. The dry wells should have a solid concrete Slab cover and be constructed so as to prevent the entrance of surface drainage from the surrounding soil. Dry wells should not be provided for roof drainage where surface discharge is feasible.


There are many alternative methods of sewage disposal, but the septic tank system described above is undoubtedly the most emcient, reliable, and the one most widely accepted for the purpose since 1916 when the patent rights expired. It is hoped that the data contained in the foregoing discussion will aid outdoor exhibitors in setting up septic tank systems which will yield years of faithful service.

As a final word of warning, however, it should again be repeated that any drive-in operator planning to install a septic tank system in his theatre would do well to consult with health authorities to make sure that all legal requirements are met. In addition, it is often wise to obtain the services of an experience sanitary engineer whose valued advice will assure a system that is satisfactory from every point of view.

* * 3!


The Editors of THEATRE CATALOG wish to express their gratitude to the Municipal and Rural Branch, Division of Sanitation, U. S. Public Health Service, as well as to Mr. Petersen, for its generous cooperation in supplying some of the material contained in the above article.

GOOD lNITIAL CONSTRUCTION will minimize later maintenance and repair costs. At the Starlyte. Medtord, Oregon careful attention was given to drainage, sub-soil, and top dressing, while the theatre was in the plan stages and best building practices followed. As a result. only normal maintenance procedures will suffice in the years ahead.


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FIGURE 8 Sectional drawing through a sub-surface filter.

FIGURE 9 Sectional drawing

of a dry well.

1950-51 Theatre Catalog, 9th Edition, Page 193