During the tension infiltrometer tests, water is allowed to infiltrate the soil at a rate which is lower than the free fall rate of water through a column, accomplished by maintaininga negative pressure on the water. When similar infiltration exper- iments involving two different negative pressures are performed, the saturated hydraulic properties of the soil can be estimated. One run yields a value for the saturated hydraulic conductivity, which includes the error due to the tension of the negative pressure. If the same experiment is performed keeping all the parameter same as except the negative pressure, a new value for saturated hydraulic conductivity is obtained. The variation of hydraulic conductivity in relation to tension allows estimation of a correction factor can be corrected by using the correction factor in relation to tension (Whal, 2004).