Be sure to answer this question by including the troubleshooting steps you would take in this instance.
"If a customer was complaining of low water pressure then I would first do some troubleshooting to find the source. I would check all of the taps in the home to ensure that they all have the same flow level. I would then check the shut off valves and look for water leaks. Once the issue was sourced, I would fix it from there. Prior to starting the job, I would refer to the customer and let them know what needed to be done."