The 7.5 is the hydrocodone strength and the 325 is the Tylenol strength. Taking a hydro with too much Tylenol with it is dangerous. It can cause liver damage. But anyway, back to the high. If you're a first time user of narcotic pills, the high is AMAZING.
While no one can determine exactly how long a water heater should last, a properly maintained, quality water heater can last 8 to 10 years. Of course, many factors will affect the lifespan, including electricity irregularities, the quality of the water heater, and the mineral density in the water.
How long does an average anode last in a water heater? I recently replaced a 20-year old water heater in my home because I felt it was probably best to do it before it actually failed. After getting the thing outside and new one installed, I noticed aside from a heat-element change, nothing else had ever been done to it.