Background: The health of a community depends greatly on the availability of sufficient and clean water. Rural households relying on self-supplied drinking water must take full responsibility for the treatment of their drinking water. Globally, not many inquiries appear to have been carried out to satisfactorily inform us regarding how and why improvements in behavior related to water treatment occur in some selected individuals and not in others. Related investigations in Ethiopia are even fewer. Methods: In the rural Aleta Wondo district of Ethiopia, a total of fifteen focus group discussions were conducted with community members. Similarly, ten key informant interviews were conducted with officers responsible for organizing water and hygiene programs. To gather data for this study, two qualitative data collection methods, viz., key informant interviews and focus group discussions, were used. Open code software 4.03 was used for thematic analysis. Results: Factors influencing household water treatment practices were categorized into individual-level factors (eg cognitive factors, emotional factors), household-level factors (household means and decision-making balance), community-level factors (the value that is given for water quality and Public resources) and, environment and context-related factors (access to products and reliance on external sources). Conclusion: Household water treatment practice has a range of multilevel influences. Beyond the model of providing ongoing safe water education by health extension workers, potential initiatives could be improved by community mobilization activities that include community leaders, women's groups, etc., in promoting water treatment at community engagements. Also, the results of the present study indicate that it could be beneficial to provide health extension staff with additional training to improve their ability to encourage community members across, a wide range of user types or levels of readiness, to treat their water.