About Us | Help Videos | Contact Us | Subscriptions

Members of ASA, CSSA, and SSSA: Due to system upgrades, your subscriptions in the digital library will be unavailable from May 15th to May 22nd. We apologize for any inconvenience this may cause, and thank you for your patience. If you have any questions, please call our membership department at 608-273-8080.


Institutional Subscribers: Institutional subscription access will not be interrupted for existing subscribers who have access via IP authentication, though new subscriptions or changes will not be available during the upgrade period. For questions, please email us at: queries@dl.sciencesocieties.org or call Danielle Lynch: 608-268-4976.



This article in SSSAJ

  1. Vol. 41 No. 3, p. 662-664
    Received: Aug 16, 1976
    Accepted: Nov 18, 1976

Request Permissions


Water Intake by a Water-Filled Plexiglas Permeameter Cell1

  1. G. Y. Tsuji and
  2. D. Swartzendruber2



Water entry into a Plexiglas (acrylic plastic) permeameter cell was measured by the recession of water in capillary standpipes connected to the water-filled cell. Submergence of the permeameter in water demonstrated that the water entry was not caused primarily by a slight leak in the permeameter or by water-vapor diffusion through its walls. Also, the rate was essentially unaffected when the permeameter contained a water-saturated mixture of sand, silt, and bentonite. Calculations for the permeameter in air indicated the observed intake rate to be 20 times that attributable to water-vapor diffusion through the Plexiglas walls, and 1/8 that attributable to direct water absorption as obtained from a maximal handbook value. Hence, it appears that direct absorption by the Plexiglas is the likely cause of water entry into the permeameter.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © . Soil Science Society of America