Final answer:
The two primary off-flavors caused by a dirty tap system are chlorine taste or odor and musty or earthy flavors, indicative of the presence of disinfectant byproducts, bacteria, and fungi in the system.
Step-by-step explanation:
The two main off-flavors commonly resulting from a dirty tap system are tastes or odors resembling chlorine and those that are musty or earthy. A chlorine taste or odor, similar to what one experiences at swimming pools, suggests the presence of disinfectant byproducts resulting from the water treatment process. A dirty tap system can lead to an accumulation of organic debris, fostering an environment for bacterial growth that produces this distinctive chlorine smell.
Musty or earthy off-flavors are typically caused by natural organic matter decomposing in the distribution system or by the growth of certain bacteria and fungi in the pipes. A dirty tap system can exacerbate the presence of these contaminants, affecting the taste and odor of your tap water significantly. Ensuring a clean tap system helps preserve water quality and prevents these undesirable off-flavors.