An analytic model of transient unsaturated infiltration is presented. The model is based on the column conceptualization of flow and transport in unsaturated soil which is expanded here to incorporate repeated infiltration and redistribution stages. The transport of reactive solute is modeled by assuming three mechanisms: advection by gravitational water flow, equilibrium sorption and linear decay. Solutions of the flow and transport equations are derived for multiple infiltration-redistribution cycles and for Dirac and finite pulse solute applications. Expressions are derived for average moisture content and for average concentration regarding the soil saturated conductivity a random value.