In order to contribute with the competence so that the laboratory of the Santiago de Cali University can obtain certifications in its techniques and the support of the new technologies of disinfection and the treatment of the answers provided by the REPLACOL microenterprise with its two models of homemade ceramic pot filters impregnated with colloidal silver (EKOFIL) and reinforced inside with a column of granular activated carbon, also impregnated with colloidal silver (EKOFIL PLUS), in order to eliminate suspensions in water, microorganisms , it was searched Objective: the secondary validation of the technique through the membrane to evaluate the removal of Escherichia coli in samples of synthetic waters from home filters EKOFIL AND EKOFIL PLUS.