The life expectancy of the mechanical devices depend on manufacturer, and use. If they are used more often, they will probably not last as long. If you have a sump pit that is dry most of the time, you may not need to replace your sump for years, etc.

Yes, you should test the pressure relief valve regularly and replace it if it fails to operate. At least once a year you should flush out the sediments.

The unsightly buildup is mineral deposits. To remove these deposits from the showerhead, take a plastic bag and pour a cup of vinegar in it. Place the bag over the showerhead and use a twist tie to hold it in place overnight. In the morning, remove the bag and use an old toothbrush to gently scrub off the deposits.

Frozen pipes only occur when the temperature around the pipes gets below freezing for an extended period of time. To stop this from happening, ensure your pipes are well insulated. If your water lines are inside, this shouldn’t be a problem. However, outdoor or garage water lines may need to be wrapped in extra insulation.

Everyone’s needs are different so it’s hard to say without knowing exactly what’s going on in your home. To get a rough idea of the size (gallons per minute capacity) you’ll need, think about how much water you use on a daily basis – how long are your family’s showers? How often do you run the dishwasher or washing machine? Do you ever use them at the same time? Try to get a rough estimate of how much water you use, then call Len The Plumber to install a tankless water heater that meets your family’s needs.