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.
exists and is an alternate of . President Obama is the 44th President of the United States. However, President Grover Cleveland served two non-consecutive terms. He was both the 22nd and the 24th President. So there have only been 43 different men who have been President. US Presidents in chronological order from first to current: