Before taking a water sample for laboratory testing you need to evaluate your plumbing. If your system has copper piping, you should test for copper and lead. Cadmium and lead are common impurities in the zinc used for galvanizing. If your plumbing is PVC plastic for both hot and cold, you will be pleased to know that plastic pipe is unaffected by corrosive water and no further testing is necessary. In addition to the home's plumbing, lead and other metals can also come from your well pump or the connecting piping to your home.
Bottled water is well tested and widely available in supermarkets.
Widely used methods for doing this are discussed briefly below. Calcite is a form of limestone quarried under sanitary conditions. The calcite will dissolve slowly neutralizing the water's corrosiveness. Be sure to disinfect the well after the addition of the calcite, and be certain that you do not damage or otherwise constrict water flow into your suction line of your pump. This is the higher-tech version of adding calcite chips to your dug well.