The Golden State: Where & How to Live, Secure, Visit, Enjoy and Thrive in California

Plumbing Repairs And Utilities

c. PEPPERMINT TEST. The peppermint test is adequate for small projects and posts having no smoke-test equipment.

To make this test —
(1) Plug outlet end of section to be tested and all other vent outlets at roof except one.
(2) Pour about 2 ounces of oil of peppermint into open vent, followed immediately by 1 or 2 gallons of boiling water. Then close opening.
(3) Inspect interior piping for odor of pepper-mint, indicating a leak. The man who pours the peppermint must not enter building until after inspection is completed; otherwise, odor of pepper- mint from his clothes will interfere with search for leaks.

Water Supply Systems

16. General

The water supply system of a building consists of the service pipe, distributing pipes, and necessary connecting pipes, fittings, and control valves. Water carried by the system must meet accepted standards of purity. See TM 5-660 (when published) for details of water purification.

17. Materials

Use the following piping materials in water supply lines:

a. Brass or copper threaded pipe with walls of thickness equal to threaded steel pipe; threaded cast- brass or bronze fittings in conjunction with brass or copper pipe.
b. Copper tubing with cast-brass or wrought- copper solder fittings.
c. Zinc-coated wrought-steel or genuine wrought- iron threaded pipe with galvanized malleable-iron threaded fittings.
Note. Glass, plastic, and china may be used as substitute materials for many plumbing-fixture parts.