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The performance characteristics of a pore water press to isolate pore water from soil samples, have been determined using peat, clay and sandy soil samples. At the same time pore water has been isolated from the same type of samples using a centrifugal filtration method. The results of both methods have been compared. Under the experimental conditions adopted, the amounts of pore water produced appeared to be larger by pressing in the case of peat and clay soil samples, whereas from the sandy soil samples, no pore water could be isolated by the pressing method and a relatively large amount by the centifuge method.