Today, after buying plumbing supplies for a project in a bathroom, I realized that there are NO drainage valves from the upstairs bathroom, all the way to the hot water heater in the basement. I fear that I'm going to have to drain the water heater and put some new valves along the pipes. I have limited plumbing experience, and I am wondering if I should call on a professional to do the job. What does everyone think?


Thanks.