Traditional IRA contributions can be tax deductible or partially tax deductible based on MAGI. In 2014, an individual with a MAGI of up to $70,000 is eligible for at least partial deductibility. There are no income limits on who can contribute to a traditional IRA.
When the water heater breaks / leaks whatever the pressure tank is going to loose pressure telling the pump to come on and the pump will run continually as it can not build pressure to shut it off.
Become familiar with the controls on your water heater. Popping noises in gas and electric water heaters are the result of mineral deposits that build up in the tank. As the water heats up, steam is produced at the deposits and makes popping noises when it releases. In-line water filters remove a lot of the minerals in hard water.