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This article in SSSAJ

  1. Vol. 53 No. 1, p. 298
     
    Received: Apr 19, 1988


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doi:10.2136/sssaj1989.03615995005300010055x

A Simple, Low-Cost Vacuum System

  1. F. W. Boyle ,
  2. W. R. Strong and
  3. P. J. Wierenga
  1. Dep. of Agronomy and Horitculture, P.O. Box 30003, New Mexico State Univ., Las Cruces, NM 88003-0003

Abstract

Abstract

Vacuum pumps are used extensively in soil research, but often vacuum is not available or the vacuum system makes too much noise in a shared work area. A simple, low-cost vacuum pump can be made from an air-tight container, such as a desiccator, an aquarium air pump, and some tubing. These units have been operated reliably for periods exceeding 16 wk in the field, laboratories, and greenhouses. The pump has provided vacuum levels equal to about 0.03 MPa. The low cost (about $100.00) allows several systems to be made so that they can provide backup capabilities to each other.

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