Self-monitoring of urine flow may help prevent catheter related problems in long-term urinary catheter users. A new intervention was pilot tested using a single group design with 11 individuals over six months to teach people self-monitoring of urine flow. The theoretical framework provided direction for pilot testing this new intervention. Self-monitoring was viewed as an important component of catheter self-management. The intervention was judged feasible and study participants responded positively to it. Feasibility of the intervention, performance of new measures and health outcomes were assessed. The intervention was well received by study participants. No participants withdrew voluntarily from the study, and all data were collected at intake and bimonthly at 2, 4, and 6 months. Nine of 11 participants talked about how the intervention had helped them to pay attention to fluid intake. Episodes of urinary tract infection decreased over the course of the intervention, with the greatest drop between 2 and 4 months. When compared to recall data for the 6 months prior to the intervention, hospitalizations and emergency department visits decreased during the 6 months of the intervention. Teaching self-monitoring of urine flow in long-term catheter users needs to be tested in a randomized trial with a large sample to demonstrate efficacy.