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.
To work with PEX tubing using the standard crimping method, three basic tools are needed: the main crimping tool(s), a pipe cutter, and a de-crimping tool. The pipe cutter is used to make a clean, square cut before inserting the tubing into the fitting.