We are having hot water problems with our electric water heater. Tepid water not nearly as robust as it should be. I've adjusted both the upper and lower thermostats from ~115F to ~130F to see if that would help, to no avail. I'm prepared to replace the heating elements but I've hit a dead-end.
I can't positively identify the darn unit. What I do know is it's a "Marathon MXB5255" installed on or around December 1994. It's probably a Rheem? Doesn't say that anywhere on it. My Google-Fu is weak. I don't know what wattage, voltage, or length of the heating elements, and while I could drain the tank, pull the elements, and go from there, that would leave us without hot water for as long as it takes me to fix the problem.
What do I do? Help! I know I can fix this problem without paying $$$ for a technician visit but I'm stuck.