Hello: The Muck Vac is a tool for the plumber who plans to service water heaters. If you are looking only to service your own heater/s it wouldn’t make sense to get one. Some plumbers have them and should be glad to service your tank/s. You’re welcome to make your own tool, but I can tell you it will be no cake-walk. In general, we advocate flushing tanks regularly to prevent the sort of build up that only a Muck Vac can remove.