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.
No, there has never been a US President from an independent party; however, at the time of his presidency, George Washington was not affiliated with a political party at all, as there were no parties in the brand new United States of America.
The first President of the United States of America under the US Constitution was George Washington (1732-1799), who was elected in 1789 and took the oath of office on April 3 â¦ 0, 1789. Washington was re-elected in 1792 and served as President until March 4, 1797. John Hanson is sometimes referred to as the first American president, although his position was very different from that of a modern-day president.