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.
Advantages of PEX: 1  Adaptable and easy-to-use plumbing system. 2  Can be used with hot and cold water. 3  Can also be used with metal and PVC piping.  PEX has fewer fittings, making it faster to install and with less of a chance to 1  leak. PEX is more burst-resistant due to its flexibility to expand and contract.