pulmonary tuberculosis is the most common form of tuberculosis bacteria that cause tuberculosis could also spread from the lungs to other parts of the body through blood or the lymph fluid an active tb disease of the lungs airways or larynx is considered to be highly contagious
Before extrusion, the HDPE can be pigmented to yield color-coded pipe. Common PEX tubing colors are natural (hazy clear, unpigmented), white, black, red and blue. The red and blue colors are used to help plumbers and homeowners distinguish between hot and cold water supply lines.
PEX-based plumbing systems have a 40-year track record in millions of installations in homes and businesses worldwide. As one of the most thoroughly tested plumbing materials on the market today, PEX has proven to be the most efficient and cost-effective material for residential plumbing and fire sprinklers.